That's half of the point of having uBlock Origin. Use the zapper to disappear an element for the session, use the picker to poof them forever. They really work on making their webapps as unbearable as possible, but you can get rid of it to make them webapps great again. Can even add sites/pages as home app icons.
Which makes Firefox the obviously better mobile browser, Chrome seems like a pretty strong case of defaults' power. Tho gotta add the "Google Search Fixer" select addon because they sure doesn't want you to get summary cards, financial charts and other goodies if you use a competitor browser.
Google, YouTube, Facebook, Instagram, Twitter and co without the ads circus. Duolingo without daily activity limit for some reason.
Another great example lately is Reddit. Reddit's mobile experience had become awful. Every time someone sends me a reddit link and I click on it, I'm taken to Reddit's mobile site, which should function just fine and dandy, but the minute it detects you are there on a mobile browser, it spams you with "Reddit works best in the app!" messages, and won't let you view some subs at all without signing in.
Reddit is a great example of mobile done wrong. Don't be like Reddit.