I guess I got unlucky and didn’t get any heart drops.
For web, I just tend to test each new thing on web right away. If you set the html5 export to be “Runnable” you can use the remote deploy button at the top right of the editor (where run, pause, and stop is) to directly launch the game into a debug web build on a locally hosted html server which is really handy.
As long as the project’s renderer is set to “Compatibility” I’ve never had any issues with shaders not working on web. I tend to use them quite a lot in my jam games and I made my own crt shader for this which works perfectly well on web :D