Sounds like windows pushed an update that has broken the Nvidia drivers for your systems. Weather that is specific to the 5090 series cards I can't say for sure. If you want to send me a 5090 I'll see if I can replicate the issue on my system for you. ;)
No but seriously I'd check and see...
I mean ostensibly the best card AMD has for consumers is the 7900xtx... Nice that they are giving support for these methods to their consumers running those cards. Like me. ;)
Unless you're getting cloud space for free I don't see a future where keeping backups in the cloud makes a lot of financial sense. It's too expensive to pump the data, too expensive to read/delete/maintain the data, and too expensive over time to just store the data. Net it seems to me to be...