When on battery power, suspend seems to work. But when it is charging and pressing suspend, it cannot wake up with pressing power button. This seems to be an issue with one charger - charger of Lenovo T14s laptop, when connecting a USB C cable to laptop, suspend works fine.
Charger spec,
20.0 V 3.25A 65.0W / 15.0V 3.0A 9.0V 2.0A 10.0 W.
I have noticed it does not auto suspend well when using this charger before (the screen keeps waking up by itself after going blank).
Any other way to get relevant logs? For now, I can avoid suspend with this specific charger.