The closest I've seen to that is PieFed, which offers something like multi-Reddits (categories of communities aka Topic areas), and word filtering where you can limit posts with the likes of "Trump" or "Musk" by either a little bit or all/none. So if you feel like avoiding news and politics (for ten fucking minutes!:-P) then you can go to e.g. Arts & Crafts, or for longer set one of those filters, yet return to seeing them later anytime you want.

Mind you, in some small ways PieFed is not as polished as Lemmy - e.g. there's a preview feature for posts but not for comments - while in other ways it's already more advanced, and being written in Python rather than Rust, will continue to move forward with new features much more quickly.:-)