yes once the pro license is linked to your Microsoft account then it is only usable by you under the terms
your best option is to reset the laptop back to its old license and then sell it [or give it] in the same way it was when you got it... the pro license can be used on your next new system...
welcome Mia
Windows 11 is less popular than 10 and 10 was hated by 7&8 users... i've yet to see anyone [includes Microsoft staff] that thinks 12 has improvements over 11 so its a good thing Linux and Mac have not managed to get their act together