Here's a few that I remember most: 1.) Desktop - Volume "slider" (since it's really not on Windows) is difficult to adjust, especially to get back to 100% exactly or any other precise volume level (25%, 50%, etc.)

2.) Desktop - mouse slider affecting volume results in a lot of accidental volume changes, especially when using a Trackpad.

3.) iOS - When going back from playback to a list of media on your local server, the list refreshes to the top every time. Very annoying.

4.) iOS - connecting to a Local Server is awkward for pre-saved ones. You have to touch the saved setting and then it just pre-fills the login info without notice instead of connecting immediately. First few times it felt like it was doing nothing, until I realized what it actually did.

5.) iOS - Adjusting brightness/volume during playback by swiping is not precise and too sensitive. Very difficult to get the setting to desired level if it's not extreme and lifting your finger usually results in another change afterward.

It's missing keyboard shortcuts for some operations (slowdown and speedup) and missing some common shortcuts that other video apps have mostly converged on (unmodified left/right for short hops, up/down for volume).

Many of the auxiliary menus are inconsistently partitioned. For example, if you're looking for a color setting in Tools->Effects & Filters, it's unclear whether it'll be under Color or Essentials.

These are minor things, but that's what good UX is all about. Tragically, new style guides and frameworks often pitch themselves by explaining solid UX principles then claiming the way to achieve these is a total rewrite using their system.

I remember I had trouble opening up the video window vs the playlist and not understanding how to switch between the two.

That being said, VLC has still been amazing for all my video needs

Vlc doesn’t have a simple stream to Apple TV mode