At the time I left it was not very functional.
I’m on MeWe now, it is OK, but I have been on Twitter since 2009, have a large group of friends there in spite of the filtering.
I’m openly harassed, but not that often. I lost about 15% of my followers there in a 2-3 month span. Have recovered a lot of that, but my stats are down to 25% of what they once were. In spite of consistently regaining followers. That tells me how much they have filtered my content.
I quit twitter after they canceled Trump, and never really liked it there. Truth is, this is the only platform where I really feel at home.
Peter Hitchens makes light of the Twitter filtering but he has a bigger Twitter following to grind down.
They usually start removing his followers once he gets over 155,000 its happened to him repeatedly in the last year or so.