Why StopTheMadness for Safari web apps?

If you'd like StopTheMadness support for Safari web apps on macOS, please let me know what you're missing specifically.

https://underpassapp.com/news/2025/2/3.html

Why StopTheMadness for Safari web apps?

@lapcatsoftware it’s one thing for me: custom css. Most importantly to revert the awful font smoothing that people set for no good reason.
@lapcatsoftware Show native video controls would be great.
I use web apps to be more granular with LittleSnitch and some sites have terrible video players.