TIM uses dGP on hybrid laptop

[cyqsimon]

On MSI Prestige 15 A10SC, there's an Intel iGP (i7-10710U integrated) and an Nvidia dGP (GTX-1650 Max-Q). When TIM starts, the Nvidia GPU is automatically used (with no obvious way to turn it off) and causes severe battery drain.

(I am 100% sure dGP is the cause of the battery drain. On this laptop there is a hardware-driven LED on the power button that turns orange when the dGP wakes up.)

What is causing this behaviour? And is it possible to force iGP?

Things I've tried

• Using deepin-wine5-stable, as suggested here; behaviour unchanged.
• Launch another application with deepin-wine (deepin-wangwang); iGP is correctly used.

Environment

OS: Manjaro, fully updated
DS: X11
DE: KDE 5.23.4
deepin-wine5-stable: 5.0.34
deepin-wine6-stable: 6.0.0.19

Additional info

• Previously when I had Windows 10 installed on this machine, natively running TIM uses iGP correctly. So the issue is likely Wine-related.
• When running run.sh via CLI there's some interesting output to stderr. Seems to be Vulkan API queries so I thought that could be relevant. See attachment: launch.stderr.log.
• I do speak Chinese but my IME is not yet set up on this machine, so sorry about that. Feel free to use Chinese or English, whichever you prefer.