To connect to gitbug using an SSH Key from windows follow the below steps
ssh-keygen -t ed25519 -C "your_email@example.com"
Copy the public and private key to /mnt/C/Users/username/.ssh
# start the ssh-agent in the background
Get-Service -Name ssh-agent | Set-Service -StartupType automatic
Start-Service ssh-agent
ssh-add /c/Users/YOU/.ssh/id_ed25519