@efolch yeah, same here. I don't even use vpn. I have an Samsung A53 (Android 13) and it's just like you said: opens than closes inmediately. I've also tried everything - more than once, but didn't work 
I have other device, with an old android's version and it's working just fine. Not a Samsung though. Don't know what could be but really hoping they fix as soon as possible.