iPad Pro Does monitor connected to M1 iPad Pro 12.9" via USB-C to HDMI adapter exhibit lower brightness than when connected to a Silicon Mac or PC?

[hajime]

Hi, anybody else has such issue?

 

[Slartibart]

which usb-c->HDMI adapter? which version of iPadOS? Do you use a monitor profile on your Mac or PC? How are the display brightness settings on the devices?