Chicken and egg problem. Gamers will come if the games are there, games will appear if the gamers come.

Unless Apple makes some investment in courting developers I don't expect an influx of games. Very few developers will take the chance on their own; why take on the technical burden for such a very small market?

I'm sure dropping 32 bit support burned a lot of bridges too. Half of my mac games on steam are still not playable in Catalina, including Valve's flagship products.