I have WSL2 preview version installed (so I can use the new systemd support). I'm running the latest version of WSL Ubuntu (not preview) and when I run snap install <insert_program_here> or any program installed with snap (like lxd) it returns

Interacting with snapd is not yet supported on Windows Subsystem for Linux.

This command has been left available for documentation purposes only.

So the lxd command has the same output. I also enabled systemd by adding

[boot]

systemd=true

to /etc/wsl.conf

wsl -v returns:

WSL version: 0.70.4.0

Kernel version: 5.15.68.1

WSLg version: 1.0.45

MSRDC version: 1.2.3575

Direct3D version: 1.606.4

DXCore version: 10.0.25131.1002-220531-1700.rs-onecore-base2-hyp

Windows version: 10.0.22000.1098

and snap --version returns:

snap                         2.57.4+22.04

snapd                        unavailable

series                       16

Windows Subsystem for Linux  -

kernel                       5.15.68.1-microsoft-standard-WSL2 (amd64)