For me, mindlessly heading to reddit have been replaced by equally mindlessly heading to either here, discord, twitter, or bluesky. Overall I think the variety is probably a net positive, even if I haven't addressed the root issue of spending time mindlessly.

Mindfully heading to reddit (relying on various subreddits as a resource for product reviews or technical support) is even more varied: gaming sites instead of r/games, googling for product reviews instead of heading to a niche subreddit, etc. I'll also visit reddit if it's a promising google result, but resist the old habit to add "site:reddit".