I tested and verified patch #21, Fixes the issue.
Added before patch screensh...

Contribution Date
Technology
Drupal
Contribution Project
Drupal core
Contribution Details

I tested and verified patch #21, Fixes the issue.
Added before patch screenshot and after patch screen recording. Tested with tour module and menu in mobile device.

Can be move to RTBC

Contribution Author
gauravmahlawat
Contribution Issue Link
Olivero: Elements within main content that have a high z-index will appear in front of mobile nav
Contribution Link
https://www.drupal.org/project/drupal/issues/3250357#comment-14344012
Files count
3
Patches count
0