Not tested with latest WordPress?

Hey there!

I can confirm that the latest version of Stripe works just fine with WordPress 5.6. Developers often forget to update this detail when updating the plugin, which is why you’ll see this kind of message. It never hurts to double check, as you’ve done here.

Here’s some more background info:
https://www.wpbeginner.com/opinion/should-you-install-plugins-not-tested-with-your-wordpress-version/