The command doesn't ask any questions so there's no opportunity to tweak it. I'm getting a recovery plan in place before I pull the trigger on mine.
edit: I might also go another way. There are some other setup methods that might be a better fit for cross-upgrading Windows types. I'm actively investigating but it may be a month before I'm in a position to try them out.
I setup a virtual Win10 edu to try and convert to Win11 LTSC/IoT. The only option setup gave me was to wipe out my apps and keep my personal files. That's what it did.
So the command doesn't offer much improvement over a wipe and a reload. Sorry I don't have better news.
Any specific features?
W10 IoT gets support until 2032 I believe.
ex: With Win10->Win11 I get a fair number of crashes when remotely viewing the event log mmc.
I've used the command with a Win11 LTSC/IoT 24H2 ISO. I upgraded Win10 LTSC/IoT 21H2 to Win11 24H2 LTSC/IoT. I've done this on two old notebooks, a Dell Core2Duo and a Thinkpad T430.