Now, the developers behind some of the most popular Android launchers have teamed up to voice their concerns to Google, but they need your help
To make their voices heard, the developers behind popular custom launchers — such as Smart Launcher, Niagara, Nova Launcher, and Lawnchair — have joined forces and are conducting a survey.
One of the main reasons behind the buggy experience is that the default system launcher handles the app opening/closing animations and the Recents screen.
Google does not provide third-party launchers with access to the QuickStep APIs for customizing the Recents app screens. A Magisk module, QuickSwitch, provides custom launchers access to the relevant APIs for smoother operation but requires root access to work
They are asking for public feedback about the problems users face with custom launchers, which they will present to Google and the Android team at an event in October (via Lawnchair's Telegram channel).
https://t.me/lawnchairci/1599
If you are a fan of custom launchers on Android or have used them in the past, make sure to participate in the survey and voice your concerns.
http://forms.gle/kDQgs2Cd98w4Xydt6
I stopped using third party launchers, on all but one of my Droids, a while back cause of this issue