Twitter was like being stuck on a cable news panel of people shouting at each other. Every interaction was fraught and involved people obsessed with correcting or reinforcing each other's opinions.
Mastodon is like a coffee break at a conference. Like walking through a constant stream of interesting conversations that I can drift in and out of without fuss or pressure.
I don't have to surf an emotional high as I scroll. People here read posts all the way through and engage intellectually and emotionally instead of only emotionally.
And I curate my timeline, so I can manage how much emotional exhaustion I'm willing to incur and I mostly don't get random crap that infuriates me or is designed to upset me.
There are still microbloggers, and there are moderation problems, but Mastodon doesn't track "influence" so I don't get many influencers in my feed.
It's restful.