Magnetic flip case activates screen from standby into lock screen more than once a minute

[OldRoutard]

Looks like the same subject here:

Phone keeps trying to unlock since Android 15

Since the update my phone screen keeps lighting up literally every 20/30 seconds, trying to find my face to unlock; while its just lying on my desk and im not using it. It drains the battery, and keeps me awake at night because there is a bright light every few seconds if i dont Flip it over or close the phonecase. Anyone else with this problem?