How are y'all handling the Windows 11 upgrade for 100% remote users that cannot come to an office?

I've done them remotely before. Usually, the user's home internet speeds aren't the same as onsite, and then there's some overhead with remotely connecting. I can put them on vpn offsite and then remote into them. That will display a locked screen on the user's side. I don't understand why domain joining would matter or not. I haven't had any issues upgrading a machine while on the domain or issues afterward. There is the usual post-upgrade profile adjustment for any account that logs in after the upgrade, but that's the same for a Win10 or Win11 upgrade. For more stubborn machines, I've had to reset Windows updates. You can tweak the registry to tell it what the target OS is. I'm assuming the hardware is Win11 capable. With target OS in place, you could just pull the update down through Windows OS updates. Otherwise, I've also created a bootable usb stick with Rufus from the iso. Set that to ignore Win11 requirements. Then use something like Image Burn to create an iso file from that. Then you've got an iso that ignores Win11 requirements. For some reason I've had to use that on a few VMs, along with having that iso file on the machine and telling it not to check for updates in the upgrade guis. Sounds like there's an issue with your organization for helping offsite people. For mine, if something needs to be shipped, it gets shipped. It doesn't happen often but it's not a big deal. If the offsite machine isn't Win11 capable, then it's prepping up a Win11 machine onsite and shipping it out. You could also get them a new or different machine that's Win11, prep it up onsite, mail it out. Then they mail theirs back. Or, prep a loaner, mail it out, and they get set on the temp machine. Then they ship their Win10 machine back. You upgrade that and ship it back. Then they send the temp machine back. Offsite users do need a working device. There isn't a great reason not to ship things around. Another option is to have the offsite user use a personal machine and remote into something you control. Depending on their work, that can work for some people. I have a plain iso from MS that is my default for upgrades, either Win10 to Win11 (but I'm done with that for my users) or Win11 upgrading. If a machine is stubborn, I'd use the Rufus iso and on the machine for the iso, no updates during the upgrade process. And then tweaking the target OS and letting Windows OS updates pull down the upgrade, which might need reseting Windows updates if that chokes. After that, I've had stubborn machines I left alone for a while, and then they would do an upgrade. Maybe Windows OS updates in between attempts fixed something. You can also use DISM to check the OS. sfc /scannow also. Disk check. I remember reinstalling the existing OS as an upgrade to that same OS version upgrade. And that freed something up enough to do the next upgrade normally. And then after that it's just reimaging. It's been very few machines that made it that far though, if any. If something really isn't working for an upgrade after that that, there's a good chance something else is going on with the machine so it's a reimage or new hardware anyway.