Windows 10 21H1 Hardware Compatibility Program has not changed from previous versions
Windows 10 21H1 version is expected to be released around May, of course, as you know, this is only a small update, so it brings almost no interesting features.
At present, this version has been pushed to the Windows 10 Beta channel for testing. After the testing is completed, Microsoft will release it according to the release time of previous years.
At the same time, Microsoft has begun to produce and release various supporting documents for the new version. For example, the latest Windows Hardware Compatibility Program documents are now available for viewing.
The hardware compatibility requirements of this version have not changed from the previous version, so if the hardware can support Windows 10 20H2, there is no problem.
More specifically, Windows 10 20H1 supports many hardwares, because the Windows 10 21H1 version itself is also developed on the basis of 20H1.
So there is almost no change in hardware compatibility. In theory, as long as it is not particularly old hardware, you can use the latest version of Windows 10.