Last weekend I used https://github.com/linsomniac/spotify_to_ytmusic to copy my Spotify playlists over to YouTube Music, and the shuffle play is SOOO much nicer there! That was my primary gripe with Spotify, the shuffle play is idiotic
You cannot make a difference this way. Their music is a commodity they have signed agreements to sell. They probably (in the vast majority of instances) had almost no bargaining power in this and a lot of signed artists don't make a penny from their work, at all.
If you really like an artist, contact them via their official channels and ask if you can send them money directly or donate to a charity they like.
Yeah you're right. Actually I was just thinking about this streaming space and perhaps switching away from Spotify, over to Tidal but probably it wouldn't make a big difference to the respected artists I'm listening to.
I believe YouTube music premium streams actually pay more than Spotify but the cross between YouTube paying way less and YouTube music paying more causes some confusion.