Lenovo slim 5 shuts down when lid closed

I use Ubuntu 22.04.4 on Lenovo legion slim 5 16APH8. I have a problem: when I close the lid of the laptop, there is always a chance that the laptop will completely shut down. And when I click "suspend" on the Ubuntu top right panel, I'm always sure that if I close the lid the laptop will exit the suspend mode and shut down.

Here is what I tried to solve the problem:

• I updated the bios of the laptop to the latest bios (M3CN41WW). But it didn't solve the problem.

• I updated Ubuntu and the drivers. But it didn't solve the problem.

• I deactivated and also activated in Gnome tweaks the function to go to suspend mode when the lid is closed but it changes nothing. The problem remains.

• In /etc/UPower/UPower.conf I turned IgnoreLid to true but the problem remains.

• In /etc/systemd/logind.conf I made these changes:

HandleLidSwitch=ignoreHandleLidSwitchExternalPower=ignoreHandleLidSwitchDocked=ignoreLidSwitchIgnoreInhibited=no

but the problem remains, it keeps shutting down the laptop when I close the lid.

Finally, I tried to completely disable the lid switch by following this post

But I don't even have a LID0 in /proc/acpi/wakeup ! So there is no way to even disable it.

What could be done to fix this issue? What I would like is to be able to put my computer in suspend mode and closing the lid. Right now it is not possible because if I put the computer in suspend mode from the top right corner of the screen then if I close the lid it shuts down the computer.

Could the problem be solved in the future with an Ubuntu update? or driver updates? Or BIOS updates from Lenovo?