Need help on sideloading a .zip applications to Meta Quest 2 !

Hello everyone, thanks for giving time to help me.

So I am trying to sideload applications that i only have to in .zip format onto quest2 headsets, and i've been struggling for 2 days to do that without success.

I tried Sidequest on two different computers, with different USB and USBc ports, tried two different headsets (they were factory reset like 2 weeks ago), with different cables (meta ones as well as more basic ones), I accepted all the things i need to on the headsets, rebooted them and my computers numerous times, re installed Sidequest on one of the computers, tried with Meta Link and probably some other stuff but nothing ever seems to work. (Obviously i activated Dev mode on the app too)

I can never see the "Unknown sources" bit in applications, whatever the cable, usb port, computer or headset i use. Also, when the headset is plugged and i accept data sharing, debug mode and the other thing i forgot, the "Device Authorized" light turns green, but all the other stay red which is my main lead on how to fix the issues i have.

The \"Device Authorized\" is supposed to be green if the headset was plugged

But given that it doesn't seem to stem from bad setup, hardware or software, i have no clue what to do (well it probably comes from one of these three but ykwim)

So did that ever happened to someone, any idea on what i can try to make this right ? I also heard that you could work with Meta Link, I guess this can be a last resort but i'd rather not use this cos i wanna be able to let people use our 5 headsets not a single one.

Thanks in advance <3