

This is probably the main reason every mainboard has TPMs now, since all common operating systems (Android, iOS/MacOS and Windows) do it.
From what I heard the Ubuntu installer offers a version that doesn’t suck (if secure boot is enabled at install time) so using that is probably fine, but I would beware of trying to DIY it since it’s easy to do incorrectly, most guides are wrong, and you will likely end up with easily bypassable encryption.
The GNU utils vs BSD utils issue should be easy to work around with a bit of symlinking and
PATHmodification:or in script form:
/usr/local/opt/...is probably not the best place to put this but you get the idea, you can make it work with POSIX tools. I don’t know that much about Chimera Linux but I’d be very surprised if nobody has thought of doing this systematically, e.g. as part of a distributable package.