No need to compile yourself, Lawnchair is NOT dead.

Join their telegram group, they share Dev builds there. Or, you can install Gooolers builds from GitHub: https://github.com/Goooler/LawnchairRelease

Personally I use Gooolers.

The explicit sync stuff can still fix a few games, best to try it for yourself. Of course, the driver side changes will be required to completely fix the issue, but for me with just the XWayland patches, doom eternal, Elden ring and Skyrim are playable again for me!!

I'm hitting ~900mbps up and down. Only recently through the ISP "brsk" in the UK. Before I was on 70/20.