As well as all the advice about curating your subs, I've had a lot of success with some well chosen content filters in my reddit app as well.

There are things that I absolutely do care about, but I'm not in reddit for those things, so while I have my reddit time they can get hidden. My list includes stuff like 'China' since there seemed at the time to be hundreds of posts about Chinese surveillance. 'Net neutrality' was hot for ages - I'm in the UK. Recently I've added 'Bing', 'ai' and 'opengpt'.

Stuff comes off my list too. While there was insane speculation about Lionel Messi changing clubs a few years ago I blocked 'messi'. But that's off the list now.

Also block trolls and particularly toxic users.

Make the space what you want it to be by removing some of the bits you don't want. Unfortunately you can't easily filter out videos of tiktok posts or twitter scree shots.