play videos directly without ffmpeg

[tmsrxzar]

That is entirely dependent on the device supporting the video and audio.  What device are you playing in and what are the codecs in your video.

as i mentioned in my post im running jellyfin docker on a raspberry pi 4 model b with 8 GB ram, when i play a low quality video it plays it directly but a high quality one runs with ffmpeg.

yes we all saw what you mentioned, what TDP is asking is what "Client" as it's the client that asks the server to transcode, the server does not decide that

anyway, in the jellyfin dashboard go to playback and set hardware acceleration to "None" to disable all acceleration

but, be prepared when your client cannot play something you will then be greeted with "The server is not sending a compatible format"

in your setup, you have chosen an un-recommened raspberry pi which can't transcode so now your client has to do the work instead, if neither the server or client can do it then you're pretty well stuck with pre-encoding all of your content to lower bitrate/resolution (whatever makes the client happy)