3.0 Exclusions
The Limited Warranty does not apply if the Hardware:
has been modified or repaired by anyone except a Valve-designated service center and the cause of the issue for which you seek service is the modification or repair, or damage caused by either;

Quote from Valve Hardware Warranty.

In other words, simply changing SSD doesn’t void warranty, but damaging the Steam Deck in the process of doing so does.

For games that doesn’t support Steam Cloud for saves etc., or in general moving files over to the Steam Deck from your PC, I highly recommend setting up Syncthing.

It’s available on the Discover store in desktop mode and can be set up to run as a service to ensure that it’s always running on Steam Deck, if you’re so inclined. There’s a myriad of guides out there if you search around, should you need help setting it up.

OVPN still seems to support port forwarding, though it’s worth pointing out they were recently acquired by Pango.

Does the eMMC version allow installing an NVMe drive?

Yes, the only hardware difference between the different version is really only the screen and the drive it comes with. You can technically buy the 64GB version and replace the screen with an anti-glare one at a later date, as it can be bought as a spare part for not much.

Personally I got the 64GB some time ago and am still happy enough with just an SD-card with good speed and decent size. I suspect that will change down the line, but right now I’m happy.

Here’s an example of what I think we’ll be seeing more of: A user getting called out and named for frequently downvoting: https://kbin.social/m/wholesome/t/80838/To-the-one-guy-who-keeps-downvoting-m-wholesome-threads

Don’t think this is the last we’ll see of this, and I think it definitely has the potential to impact peoples participation in the long run, with people self-censoring themselves out of fear of being called out for voting wrong.