Might want to double check that CPU. 'F' in the CPU title means it doesn't have integrated graphics - you'll need a separate graphics card for it to even boot. A 10th gen i3 without the 'F' (e.g. i3-10105) would have graphics + Intel's Quicksync, which you'll want for hardware transcoding using Plex. Of course if you have a separate GPU you can use that here.