Yes, except support for Win 10 ends in Oct 2025 and potentially you won't be able to register the OS at all when you install it into a new build...
Have you ever used any support for Win 10?
I haven't.
I'm running a win 8 computer to order my Ubereats from in the tv room, and that is still getting updates.
As long as you keep the Firewall/Anti-virus up to date, and do what updates get sent, you shouldn't need any support from Microsoft at all.
Even if the updates stop, as long as your Firewall remains effective, you don't need to update to 11.
As far as installing into a new build goes, just get them to copy the entire existing drive to the new computer. The only issue then is driver updating.