A couple of years ago I set up an old iPhone as a Spotify connect device (as in it sits in a speaker dock and I play music through it controlled by my phone). It was similarly unsupported but I found a not-too-hacky way of installing an older compatible version of the Spotify app via iTunes on a PC (which involved having to install iTunes and find an apple account). I imagine there are instructions both official and amateur available for you to follow, but hopefully you should still be able to install stuff on it. Just don’t do anything involving sensitive info as you’ll be out several years of security updates!
It’s a bit weird to see Threads being referred to as Facebook’s version of Twitter - wasn’t Instagram already Facebook’s version of Twitter, just with the gimmick being images of text rather than just the text? This seems like it’s basically the same social network with a different interface - all the users are the same and the list of banned content is the same, people are coming in thinking it’s the same thing so it will end up being the same.
I need all the protection I can get now Big Subreddit are after me!