Though from my understanding, there is far less of them, they're harder to do, and easier to solve.

And even if it's the same amount, having a sandbox that's harder to escape, holding everything else equal, seems like a win for end-users.

Flash's demise, while it caused me no end of grief back in the day as it was the bulk of my income, was a good thing in the end.

May I ask how have you been monetizing Flash up to that point?

I remember reading examples from an e-book on how to build 3D scenes with Flex 3 when I was 17-18 years old. It was a short lived dream of mine to create online video games. Instead, I ended-up making add-ons for PHP-based forums.

During that era Unity had its own web browser plugin and there was at least one Tennis-like game on the miniclip site itself.

I owned and ran a web design agency, but because of my skills in Flash a lot of our "value add" was doing impressive experiences/interactive showcases for our various clients. A lot of it was doing kiosk deployment work, which I think is still done today with Flash sometimes.

Flash did not went away, thanks to the wonders of WebAssembly.

https://leaningtech.com/cheerpx-for-flash/