In regards to using stylus to block a fwe custom elements, you can also use uBO's cosmetic filters[1] instead. Converting stylus' styles to uBO filters is easy enough if all you are using them for is hiding a few elements. I guess this has very limited use to you though if you also use stylus' themes, as it won't let you remove an extension.
Well thank you good to know, ill have to start experimenting to see how well it meets my needs.
I mostly use stylus to to dark theme sites , remove side bars footers and headers, then expand the main article column to be 80 - 100% of the page. I really enjoy just reading an article with no distractions. (reddit is a pain)
https://collegereadiness.collegeboard.org/sat/taking-the-tes...