You could make seperate accounts for different topics. Like make one account for memes, one for technology, one for news/politics, one for educational purposes etc etc.
Pretty much every Lemmy app lets you login with multiple accounts at once. Wefwef does that too, if you prefer websites over native apps.
That makes seperating your feeds a more clean experience. That’s how I do it for Youtube example.
If I open Youtube, because I want to listen to music in the background, I don’t want to get distracted by memes, news, vlogs, gaming stuff etc. That’s why I log in with my Music account where I only subscribe to musicians. This gives me a clean feed and the algorithm works in my favor to keep me at the topic at hand.
Life is a dream, only death is real