I've been using lawnchair as a launcher that is open source (apache) since the first news broke months when the previous dev/owner warned people what was coming, and it works just fine. Not quite as versatile as Nova Launcher, but with 100% less adware now that the new adware company is running up in people with a bait and switch.
Early on, Lawnchair implemented a blacklist to hide apps they deemed “bad”. They only removed it after lots of protest from users. That has “burned” this launcher for me.
I tried Lawnchair out when figuring out what I was going to replace Nova with. I didn't end up choosing it, but if I had known they tried to do this (even if it only made it to the alpha channel) I wouldn't have even bothered to try it out.
I'm certainly not going to say nobody should use it.
But I assume the dev then is the dev now. That he was OK introducing something like that, even 9 years ago, tells me that his values and my values are very far apart.
I did actually evaluate it (before I knew this history) and it didn't meet my needs, so I chose something else purely on technical grounds anyway.
Enshittification is real!