for me, the advantages are:

* In WSL2 I don't need to worry about, ports, mounts and data persistence (I think this is possible in docker but it needs more setup work)

* I don't need docker desktop running

in the end I think that both can solve the problem, I myself prefer wsl for my day to day tasks.

fyi docker works perfectly fine in wsl on Ubuntu and other distro using the standard installation method on Linux, no docker desktop needed.