360 Total Security (a full, non-pricy antivirus/security suite) works with full feature parity to windows 10 if osver.ini is set to 10 and version 1809.
WPS Office (a freemium equal substitute for Microsoft Office from the same 360 chinese company including pdf) works with all nt 10.0 features in the same way, albeit with some heavy bugs, including not being able to minimize without a crash (no documents are lost due to the automatic backup), but bugs stop if osver.ini is set to nt 6.1. AI assists and AI tools work even in a 64-bit pentium 4.
The 360 cloud storage works with no issues and can completely replace onedrive or google drive. Both programs work natively on vista as well but i'm not sure if with feature parity to 10.