You don’t have to go to 11, but you can’t stay here
Windows 10 21H2 will reach end of sale on June 13th and will be upgraded unless the computer is protected by a corporate network. The schedule isn’t exactly clear, but it will be a forced upgrade shortly after that date. If you’ve disabled the TPM, you should be safe, assuming Windows 11 doesn’t find a way to enable it remotely. I see an update to at least Windows 10 22H2, but it’s not labeled as optional.
Microsoft is kind enough to let you choose the time, so you won’t be rebooted mid-sentence, but don’t expect to delay it for days. This problem can occur during times when Windows detects that you are not using your computer normally. At the moment, updating to Win10 22H2 doesn’t break many issues, but the same can’t be said for Windows 11.
But despite many taking the plunge, The Register reported that Windows 11 usage jumped from 9% in March to 23% in April. This mandatory update could increase that number even further. I hope you are all prepared.