I migrated the KMS server to a new Windows Server 2022 machine and installed the KMS host key (CSVLK) for Windows server 2022 datacenter. This key will also be used for activating my clients lower then the Server 2022 OS.
Besides this i installed the Office volume license packs for Office 2013/2016/2019/LTSC2021 and i tried doing the same for Office 2010.
Unfortunate the Volume License Pack for Office 2010 is only supported untill server 2012R2 and wont let it install on Server 2022, but it installed what i needed anyway.
After installing the Volume Licensepack Office LTSC 2021 i did not close the wizard but i clicked next to add another product. I added the Office 2010 CSVLK KMS key and activated the server.
Hope this helps 
Cheers