Glad you specified the kernel information! That kernel says that your instance is WSL1, not WSL2.
Linux Revel 4.4.0-19041-Microsoft #488-Microsoft Mon Sep 01 13:43:00 PST 2020 x86_64 x86_64 x86_64 GNU/Linux
Linux Revel 4.19.104-microsoft-standard #1 SMP Wed Feb 19 06:37:35 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
My guess is that you may have installed WSL2, but didn't convert your existing WSL1 instance to WSL2. Converting your instance to WSL2 should fix the issue.
Assuming that you do actually have WSL2 installed, then you can do this through either ...
wsl --set-version <Distro> 2
Or, clone the WSL1 instance with
wsl --export <distroName> <filename.tgz> and then import that back in as WSL2 with
wsl --import <newDistroName> <DirectoryWhereYouWantIt> <filenameYouCreatedFromExport.tgz> --version 2. More details in the first part of my answer to another question here.
Or a "middle ground" approach between the two. Back up the existing instance with
wsl --export, test it with a
wsl --import, convert the original with
wsl --set-version, and then delete the one you don't need with