I researched these topics before posting mine and I believe them to be unrelated since I am using init 0 to shut the laptop down.
man runlevel presents me with this table:
Table 1. Mapping between runlevels and systemd targets
+----------+-------------------+
| Runlevel | Target |
+----------+-------------------+
| 0 | poweroff.target |
+----------+-------------------+
| 1 | rescue.target |
+----------+-------------------+
| 2, 3, 4 | multi-user.target |
+----------+-------------------+
| 5 | graphical.target |
+----------+-------------------+
| 6 | reboot.target |
+----------+-------------------+
where you can see that init 0 is not engaging suspend/hibernate mode but rather powers the laptop off. So I believe my topic to be separate and most likely an hardware Issue, that’s why I posted it in the community-support category, but sadly it got moved away.
This actually brings me to a side question:
How do I know if the laptop is off or in suspend/hibernate mode?
My Lenovo T15 from work has a small LED at the back of the screen, which shows me the state, having this on (one of the two) FW13 LEDs would be a really useful feature for me right now.
In case I missed something and you still believe that my topic is a suspend/hibernate mode topic in disguise please let me know what I missed and what you think about it.