Jellyfin server filling up the RAM after a few weeks

[Polaris]

Hey everyone !

-Description of the issue
Even when left idle, after two or three weeks, Jellyfin server starts using all the RAM it can find on my machine (4GB out of 8GB).

-Version of Jellyfin
10.8.10

-Installation method and platform
Debian repository

-What client(s) you are using and how the issue manifests
I connect with the official Jellyfin apps for Windows and Android. I also use the website version sometimes.

-Any other context you might think is relevant

Other than filling up the RAM, everything works fine. My server gets somewhat slower, but it still makes room if I need something else.

The RAM gets cleared if I restart the Jellyfin service. A computer repairman and system administrator that I know said that all I need to do then is set-up a cronjob to restart it, but this solution feels like a band-aid, and I just want to be sure. Have I overlooked something ? Do I have a "proper" solution, so to speak ?

Thanks in advance ^_^