In Windows SO, clic right button on an obsidian shorcut, then properties.
Then in Destination Box type a space at the end of line and paste:
‘obsidian://open?vault=my%20vault’
Replace my%20vault with your valut name, apply.
There are more options to use, here:
https://help.obsidian.md/Advanced+topics/Using+obsidian+URI#Action+open
I hope help you
Cheers