No, I'm framing this as "go ask 1000 different people to make a list of the top 10 issues they have with the web, and we will be able to solve 99.995% of them without ditching the web browser and start using a Gemini client to access documents instead".
All the problems you are describing are tractable with a web browser. Disable javascript, disable external stylesheets, run all the websites you want to read through wallabag and then just browse with a preset userstyle. Use lynx for all I care. That's all there is to it. Any of these approaches will get you the same type of experience you'd be getting from a Gemini client - with the difference that we won't need to know or care about it.
You might keep looking for justification for experimenting with other things. You might find joy in using them. It's all good, but completely orthogonal to the point. At the end of the day I'm just saying we do not need to switch to a different transport protocol in order to experience a saner web, and y'all are acting like just I'm calling your kid ugly.