SimpleX is what I use. I tried Signal in the past, but there was a noticeable delay in receiving messages and it caused problems when using it to communicate with family.
I have no problems with SimpleX so far. It works well and looks modern. A feature I like is that you can create a different user identity for each contact/ chat thread. It also supports socks5 proxy.
Same. I’ve been tentatively exploring podcasts, since most of what I used YouTube for was listening to videos to get to sleep at night. It would be exciting if Peertube use picked up because of this, though.