Obviously. That's why not many poeple use it, they just don't care enough to handle not being able to use those websites/fix them by configuring their NoScript
Im using uBlock (Medium Mode) and JShelter (Strict Mode). It's an awesome combination, mixed with Firefoxs already existing anti tracking and resist fingerprint setting (default on Librewolf)
NoScript isn't very popular anymore since it breaks many Webpages. Only exception is Tor, which comes with NoScript by default. Also there's uBlock, uMatrix, LibreJS and many more to block scripts nowadays
I'd highly recommend switching away from Miui. You can find custom roms here on xda
Why Miui sucks:
Like you already noticed, their battery optimization is way to aggresive
They're invading your privacy everywhere possible
Battery lifetime sucks royaly (Evolution X rom & Android 14 increased my battery endurance by about 140%! That's insane)
Stock apps have ads
It heavily cripples performance (slow app loading times, etc)
Some simple customisations are flat out impossible (for example, you can't use any custom launcher without fully breaking gesture navigation, setting your lockscreen wallpaper only works with Miuis stock Gallery/Themes app)
They show you exactly what their algorithm thinks gets you the most addicted and wants you to interact with the app in any way possible. Most of the time that's achieved by making you feel negative emotions
You can crack most apps using Lucky Patcher
Make sure you get it from the official website though