They seem to be using the TPM for Office 365 licensing as well [1]. Presumably this will move to a requirement around the same time Windows 10 support ends.
[1] https://learn.microsoft.com/en-us/office/troubleshoot/activa...
[1] https://learn.microsoft.com/en-us/office/troubleshoot/activa...
That means that Office 365 will have to get the boot.
As an 'oldie', I can remember when every office computer had to have .doc capability. I haven't seen a .doc file (including .docx) for years. Everybody uses .pdf these days. Why? Simply because there's no bullshit about reading or writing .pdf files.