It's not easy but Firefox reader mode handles most sites, and very aggressive adblock settings also helps. In some cases (my local newspaper) I've written custom proxies to strip out the crap (makes the site load a heck of a lot faster, and uses far less mobile bandwidth).
Here's a tip: look into the Smol Internet movement.
https://thedorkweb.substack.com/p/gopher-gemini-and-the-smol...
So, the premise here is that the Web is broken as well. And it's broken at various levels. There are various ways of dealing with this brokenness. You could move towards a text-only browser all together (e.g. Lynx, elinks) but that solves things partly.
Smol Web takes it a notch further. It's doing away with most modern affordances, and resorting to the absolute basics to share information. It even does away with HTTP altogether, and reprises to "old" protocols such as Gopher and Finger, or it devises new protocols, such as Gemini, which are entirely plain text and stand out in their simplicity and terseness.
In a way, Smol Web fits in a larger retake on computing as it happened in the 80's and early 90's. Before TBL invented HTTP, and Marc Andreesen went on to develop Mosaic and Netscape.
It's definitely not for everyone as it lacks any and all convenience / services you'd find on the Web (search engines, social media,...). And it's in no way or shape a replacement for the Web. Still, it's a breathe of fresh air to navigate the calm stillness of a plain text only hypertext.