On multiple ASUS G513QY (AMD Advantage) laptops, reported the same problem, once or twice a month, we could record on at least two units, where morning laptop boot, shows dGPU (RX6800M) as "!" so dGPU doesnt work unless, disabled > re-enabled and rebooted, then its back to work normally. This happened twice in a month for me and one more G513QY owner. Could be more people in the world having this but simply not in our Discord server, so we dont know about them.
Possible cause: cold laptop boot, VRMs/Mosfets not getting warmed up enough by the time Windows boots and hence dGPU not getting properly activated, maybe post bios delay, to let the board warm up, or delay in dGPU activation, could solve the issue.
I would assume ASUS could debug this issue from their end, maybe some sort of a bios/firmware/vbios patch to fix this bug. Very rare bug, months without, then one month you could encounter it once or twice.