Here's another version of fingering a G major open chord:
Middle finger on 2nd fret of the A string; ring finger on 3rd fret of low E string; pinkie on 3rd fret of high E string.
If that seems to make no sense, try it switching from open G to open C at faster tempo/speed.
I wish this forum had a "block user" feature. Possibly I'm not the only one......