Yes, classic deb based ubuntu utilizing TPM FDE does use a snapped kernel. In fact, it boots ubuntu-core and pivots to classic.
ken@t14:~$ df -h /lib/firmware/ Filesystem Size Used Avail Use% Mounted on /dev/loop1 328M 328M 0 100% /snap/pc-kernel/1669
Yes, classic deb based ubuntu utilizing TPM FDE does use a snapped kernel. In fact, it boots ubuntu-core and pivots to classic.
ken@t14:~$ df -h /lib/firmware/ kernel/ 1669
Filesystem Size Used Avail Use% Mounted on
/dev/loop1 328M 328M 0 100% /snap/pc-