It's the norm for GNU/Linux users who run it on the bare metal of their laptops, in my experience. I haven't seen a laptop boot a linux distro without a LUKS passphrase prompt in years.
I can't say the same for Windows and Mac users.
Last two employers recommended FDE but made no strict requirements because apparently it was non-trivial for non-Linux users.
It's a no-brainer feature for any sufficiently fast portable device. If the installer supports it why would you disable it? I haven't had to worry about the data on my laptops should they be stolen for what must be over a decade now, GNU/Linux has supported it that long.