The setting for disabling VirtueMart CSS does not work when Layout Bootstrap Version is set to any Bootstrap version.
Go to Configuration > Templates
At Layout Bootstrap Version select any Bootstrap version
At Use the VirtueMart CSS select No
Check <head> in the frontend
Expected: the VirtueMart/Bootstrap css is not loaded when Use the VirtueMart CSS is set to No.
Actual: No matter what the setting is at Use the VirtueMart CSS, the following link is added to <head>:<link href="/components/com_virtuemart/assets/css/vm-bs#-common.css?vmver=9ea620ca" rel="stylesheet">
Replace '#' with the selected Bootstrap version (2,3,4,5)
Disabling CSS does work as expected when Layout Bootstrap Version is set to None (Use Legacy).
This one is still open.
See attached image to explain it better...
VM4.4.6
J5.2.3