I meaaaan, while I did join Lemmy because I was sick of reddit the company's greedy decisions, I do miss the amount of users and content it has/generates. If reddit joining the fediverse meant they couldn't dictate what app I use to view their posts, I probably would enjoy being able to browse their content again.
You can kinda already do that, apps like rdx, Stealth, and Geddit pull reddit content without using the API. You can't vote/comment, but you can still follow communities that have worthwhile content.