Way back when Android Lollipop was released, Google introduced a feature called "merge tabs and apps" and enabled it by default for all Lollipop users. Basically, what it did was turn individual Chrome tabs into application windows in Android's application switcher. If you have an understanding of how Android works, this makes perfect sense; this turns tabs into full citizens of the Android application and intents workflow.
Starting with - I think? - Android Marshmallow, Google turned the feature off, but kept it as an option in Google Chrome, so that those of us that liked it could turn it back on. Obviously, this was the first thing I always turned on when setting up any new Android device; it just makes sense from an Android perspective. It smooths out the workflow, and makes sure that tab management becomes a thing of the past; they are discarded just like other Android applications.
Sadly, starting with Chrome 51, released a few weeks ago, the Android or Chrome or whatever team decided to remove the option altogether. The release notes stated:
When Android Lollipop was released last year, we moved Chrome tabs to live alongside apps in Android’s Overview app switcher. Our goal was to make it easier for you to switch between your open apps and websites. However, we heard from many of you that you could not find the tabs you created. This was especially difficult on phones that do not have a dedicated Overview button. While considering how to make Chrome work better for everyone, we brought the tab switcher back into Chrome so you can find your Chrome tabs in a single place. Look for a new way to manage your open tabs in coming releases.
This single change has thoroughly ruined the way I use my phone. I now have upwards of 60 - and growing - "open" tabs, because the Chrome team wants me to manually keep track of and close every individual tab that gets opened while using Twitter, Facebook, WhatsApp, and other applications. I now have to keep track of not only running applications in the switcher, but also open tabs in the tab switcher, the latter of which can only be opened with a button in Chrome all the way at the top of my ginormous Nexus 6P display. The tab switcher itself, meanwhile, is a finicky clusterfuck of imprecise swipes and physics nonsense, making it all incredibly frustrating to use.
Update: this paragraph was added later as clarification. In addition, if you tapped on a link in, say, Fenix (Twitter) and read the website in the tab and then pressed back, said tab was automatically closed. This automatic closing of tabs with the back button does not happen with the inferior new method, hence the asinine clutter build-up.
Trying to switch to a specific tab I may have opened earlier in the day is an exercise in frustration now, since instead of just opening the application switcher and finding it a few swipes up (I don't use many applications), I now have to first find Chrome or launch it from my homescreen, find the tab switcher button all the way at the top, count to ten as I try to use the asinine tab switcher, and then hope I can find it somewhere among the more than 60 - and growing - "open" tabs and UI input lag caused by having to render all these tabs in that weird 3D space.
As someone who keeps track of world news, things like UEFA Euro 2016, technology news, and so on, all throughout the day, I end up with countless interesting tabs that get opened on Twitter, other social media, instant messenger, and so on. The Chrome team has actively decided to break my workflow, and there's no way for me to get it back - probably just because instead of looking at the how or why, they just looked at their precious, precious user data, and called it a day.
Looking to the future, with (freeform) windowing coming to Android, the change makes even less sense. Having tabs as part of the regular application switcher surely makes sense from a multitasking and multiwindow perspective, automatically giving Android users the ability to have multiple tabs side-by-side, in a way that is consistent with using other applications side-by-side. How are they going to implement this now? Will Android users have to deal with multiple Chrome windows, each with their own tab switcher? Where do tabs of closed windows go? What madness is this?
I find solace in that I'm not alone. Countless friends have expressed their hatred for the removal of merge tabs and apps (I've seen some of my programmer friends with well north of 100 "open" tabs), and the Chrome for Android reviews in the Play Store are riddled with angry one-star reviews. Google's forums, too, are filled with angry users. I'm hoping the angry comments and one-star reviews will make the Chrome team reconsider and bring back the option to merge tabs and apps, the Only True Android Way™ to manage tabs.
I'm sure tons of people here will consider this whining, but imagine if you're a programmer, and someone randomly took away your ability to insert tabs, forcing you to use spaces instead (or vice versa). That twitch you feel? That's us right now, every time we use Android.
For the first time in my life, I actually rated an application on an application store. Guess how many "stars" (why is it always stars?) I gave to Chrome for Android.