At some point in this millenium, it became ubiquitous in games to ask for a button press before switching to the main menu and it has become a pet peeve off mine.
Why is that there? It’s your main menu so ugly that you have to shield players from it? Why can I not double click the game Icon, go to the kitchen to get coffee and return to the PC/console to find myself in the main menu ready to continue my game? Seriously, cui bono? Sometimes, they even show a different screen before that press, which some artist got paid for creating, so the developer is also losing (a tiny amount of) money here.
I honestly just don’t get the point of these screens.
Bonus negative points for games that only check DLC after that button press instead of any other point of the losing process. Calling a server could easily be threaded while the game assets are loaded since it takes very little hardware load to do so. But no, I get to wait an additional 10 seconds because the game devs want me to for no apparent reason.
On a related note: just allow players to auto skip intros, please. Just put an checkbox in the settings, so that everyone can see it once.
Some games, like the Pathfinder games by Owlcat, use that initial input to determine if you are playing with mouse/keyboard or a gamepad. Depending on that, you get presented with a different UI in the main menu.
Another reason for such a screen could also be Xbox support. Nowadays it’s no longer necessary, because user-handling has been vastly improved with the GDK, but before the GDK was released a splash screen was the most user-friendly way to do user-handling in a single-player or online-multiplayer game on Xbox.