I've been using lawnchair, and I like it's simplicity. They're latest "real" released version is from 2018, but not long ago they jumped from Version 14-beta3 to 15-beta1. I can't say I understand their development philosophy, but the product is pretty decent with an occasional issue. I have had some intermittent problems with widgets on this latest beta.

https://github.com/LawnchairLauncher/lawnchair

I've been using Lawnchair 14 for a while now and it works well. I'm looking forward to some of the features in v15, but no complaints.