Seconding what Connor Walsh said, with one caveat about Bumble.
If you only test one thing on the app, make it whether the algorithm is doing anything useful.
Out of roughly 80 matches on that one, 2 turned into an actual conversation.
Given how whether the filters survive a refresh behaves, I would only recommend that one to someone with patience.
After a few weeks on Bumble the only question left was how the mobile build compares to the desktop one.
Things worth confirming before you spend a week on Bumble:
- Whether Bumble works at all outside the three biggest cities near you
- Whether the Bumble photos survive a reverse image search
- How quickly Bumble starts pushing a paid tier at you
Whatever you land on, test Bumble for a week before you judge it.