We've been wanting to make a "browser" that doesn't render HTML/JS/CSS from the server and instead converts the content to a non-executable format (like markdown but probably not actually markdown) that it then displays in a consistent way.
This is the nuclear option for the constant distractions that are common now.
We're not doing that because we're pretty sure it would be a full-time job we wouldn't get paid for, and we'd have to abandon all the existing projects we maintain.
@madewokherd that sounds very similar to what Firefox's reader mode does