What "experiments" do they run?
Testiclides: The only real option you have right now is the following:
A walled garden closed platform console that locks online play and save backups to a rental service like Xbox Live Gold, Playstation Plus, and Nintendo Switch Online and where only one corporation controls all the software in the system is not a "real option" and worse than Steam in some cases.
Also, i have some physical discs where most of the content is unplayable after the servers shutdown since it was tied to a online company server and has no LAN support like my PS3 physical disc of Battlefield 3 or my Wii U physical disc of Splatoon,
while all of the digital games with LAN, Direct IP, or self hosted dedicated servers in this list will have the online multiplayer working forever out of the box even after the official company servers shutdown, so these digital games are truly 100% DRM-free and owned while my physical discs with online only content after the servers shutdown are "revoked" and "rented"
Testiclides: There is, but it's always inevitably bypassed, so I basically dont count it lol. PS5 discs can already be copied with retail, off the shelf disc drives, so there's that. And jailbreaking also helps with all that too, as well as granting the ability to no longer needing to have the disc inside the drive to play. Pretty good stuff
Nintendo has been saying it's illegal to copy your games since the SNES days, and the manuals for all the aging Wii U physical discs i own says it has "technical protection measures" (DRM) and it's illegal to copy a Nintendo game.
Since Nintendo likes to sue anyone that touches their property, you're more likely to get Nintendo send their lawyers after you for backing up a physical Nintendo game than Valve send their lawyers after you for backing up a digital Steam game.
If you don't count it as DRM because it's "inevitably bypassed" why not buy on Steam and use a "Rube Goldberg Machine" to make it "DRM-free" then which is easier than modding a console? Also, the Xbox One/Series consoles still cannot be "modded" after 11 years today.
GOG is the only platform i know of where it's 100% legal to backup your games since section 17.3 of their User Agreement says you can play your backed up DRM-free GOG games after GOG shuts down permanently. Backup all your receipts and offline installers and you're all good.