It doesn’t feel welcoming, the only thing you get displayed is press tab and a small little icon. Make the players know they joined YOUR game. Don’t make it take up the whole screen, but you need something to fill the rest of the screen. If you are not looking for it, that text and icon are easily missable.
Again I like it, but it’s too small and barely noticeable - new players will take some time to figure it out.
You can still make it modern, but make it more, make it achievable, make it seem like you’re proud of your game and you want people to know that your game is x, y and z (fun, colorful, etc)
Also the music, it starts slow and low and then it gets loud and all funky. You should find a music that a) has a very quick intro and keeps the pace (for example, look at Fall Guys’ or Mario Kart) or b) a slow music that stays slow and calm (something like Westworld’s main theme would be great).
Depending on your game, choose wisely
Thanks for the feedback, the whole design of my UI is to be subtle and modern. I see where you’re coming from, I’m just using a placeholder audio for now also.