I just briefly tested 2020.2.0a7 with the project from Case 1108597. After a first hurdle that appeared as an editor crash (Case 1238901), I'm positively surprised. I'm positively surprised of a noticeable editor performance improvement in this build! It's the first version in years where playmode with Case 1108597 isn't awfully slow. The editor UI is still lagging behind and it's not too much fun to use, but overall it seems 2020.2 isn't a step backwards. I haven't looked further into this release, because I didn't want my initial happiness to vanish. Spoiler In that sense, thumbs up for the good work! You're on the right track. Keep doing what you did, please don't finish half-way and working with Unity could actually get fun again.