This problem with Tinder has been going on for several years. People have been complaining about it for years. Spotify and/or Tinder could fix it easily. But there's nothing to fix. It's working just as it's supposed to. That way just happens to be extremely dumb.
It seems that Tinder uses your top 50 artists you've been listening to most (during past 4 weeks or so).
And out of your real and accurate top 50, Tinder shows 20 most popular artists. So, your Tinder profile do NOT show your top 20. Tinder shows the twenty most popular artists out of your top 50. So if you've only been listening to 40 different artistist lately your #41-50 could be any artist you've been listening to for one minute (or none?).
For example: My Tinder profile's "top 20" has only seven artists from my real top 20. But they are all from my top 50.
When Nirvana entered my top50 at #49 I updated my Tinder profile's "top 20" and Nirvana also appeared there. When I had updated my Tinder top 20 an hour before Nirvana was not there (because it wasn't yet in my top50).
Your personal top 50 updates once a day.
Another example: I have listened to Chelsea Wolfe tracks about 1000 times during past 4 weeks. I have listened couple of tracks from Billie Ellish. Chelsea Wolfe is #1 on my top 50. Billie Ellish appeared at #42. Guess which one was on my Tinder "top 20"? Well, not Chelsea Wolfe, because she has only few million plays, while Billie Ellish has billions and she was the most popular artist on my personal top 50. Chelsea Wolfe doesn't fit into my "top 20", because there are 20+ more popular artists on my top 50.
(It seems like there's few exceptions... The artist who's anthem you have chosen might be in Tinder's list of artists you listen to most. My Tinder "top 20" is actually top 22, because there's also the artists who perform my chosen anthem. They are not in my top 50 and if they would be, they are not popular enough to be in my Tinder top 20.)
The funny part is: Tinder thinks it's doing us a favour. By showing the most popular artists you "like", you might get more likes and matches... but the obvious problem is that those matches are not necessarely with the people you share the same taste in music. I don't need 100+ matches. I only need few great ones. Or one. And I do not mean 'great' by any objective standards. I mean a great one for me.
Two questions:
I try to be respectful, but... Why on earth haven't Spotify employees told people how this works?!? They should have done it years ago! What's all this nonsense about uninstalling your app and clearing you cache etc.? People have been complaining about this for years. Why haven't you just told people how tinder+spotify algorithm works?!? [lot's of self-censored text here]
As a paying customer it should not be my job to do detective work to figure out how this works, when you could have just told your customers here on spotify community years ago, and we would have been like "oh, well that's dumb, but ok, if it's up to Tinder, what can you do. Good to know, thanks". But for some extremely strange reason, you have chosen to blabber about uninstalling your app and downloading it again, though you know it won't work.
If you claim that you did not know how this Tinder+Spotify thingie works... well, you've had at least five years to figure it out, because that's how long your customers have been complaining about it.
And another question: If your paying customers are displeased with it, why don't you fix it?
Instead of '20 most popular artist out of your personal top 50' why won't you just make it 'your personal top 20'?
If Tinder uses Spotify users' top 50, do not give those out. Just give Tinder the top 20 of every user.
Problem solved.
But, at least... please, for now on, tell your customers how the algorithm works.
(Sorry about my English, but if I write in Finnish this would be much harder to understand, vai kuinka on?)