The insider build for 1903 has a new functionality that allows browsing files on WSL from explorer. The paths look like \\wsl$\Ubuntu\home\alecxvs\Git\myproject.

Running wslgit from this path gives this error:
thread 'main' panicked at 'Cannot handle path "\\\\wsl$\\Ubuntu\\home\\alecxvs\\Git\\myproject"', src\libcore\option.rs:1008:5