The log you shared does have any video playback activity. Can you watch a video with the problem you described and share the updated log? Also, what kind of playback device you playing the video on?
Jellyfin 10.10.3 (Docker)
Ubuntu 24.04 LTS
Intel i3 12100
Intel Arc A380
OS drive - SK Hynix P41 1TB
Storage
3x WD Red Pro 6TB CMR in RAIDZ1 (JF Library)