Qubes not charging Thinkpad P1 via USBC?

When running Qubes my laptop will not charge over USB-C. I am using proper cables and a gAN charger with 100W output. It works for Windows. Under power manager, when I connect the cable, it detects it (Line Power says plugged in)

Anyone have any ideas ? I want to avoid traveling with this bulky power brick if I can.

I have Thinkpad T16 Gen1 that charges without problems via the original charging cable with USB-C.

Ideas: try LiveCD of *ubuntu/Fedora or other GNU/Linux and check how it charges.