Project Logo Mp4 video not showing

So i want to add a Logo of my Company with animations or cinematics and a Unreal Engine 5 logo and maybe something more between Levels, how can i do this? I have created de Mp4 videos with the animations (I beleive Unreal needs Mp4) added them to the Movies in the project settings, also to my Content folder in a Movies folder, but nothing when i run the game i can se anything and the video itself throws a error (I dont know which because i dont know where the video logs are in Linux). Please help me, Thanks. Do i have to mention i use PopOS or a Ubuntu derivate?

In Popos which is Ubuntu i have installed all GStreamer codecs, also im using Davinci Resolve to create the Mp4 movies but i think that because its the free version y cannot decode de movie to h264 or the codec needed by Unreal. The logs say some problem with Vulkan not able to open the video i think