I don't know whether killing Tweetbot was intentional or deliberate. However I was a pretty heavy user of Twitter - scrolling through my timeline on the tram, in cafes, on the toilet or whenever I had a spare moment. I assumed that the API outage was temporary so I didn't download the "official" app, and figured I'd just wait a day or so for Tweetbot to be fixed. It's now been ~3 days, I don't miss not having Twitter…
Twitter was making no money off you so I doubt Elon Musk will care.
My twitter usage is so fine tuned to tweetbot, that I'm also just a lost user. I miss some of the people I followed, but it's fine. I have no interest in using the official twitter app.
It's back to RSS feeds for me, which I find fill a similar niche to twitter.