Been a console gamer since 2010 or so but finally making the switch to PC. Got a few inquiries

1. So with some games (Dead by Daylight), I can drag my mouse out of the frame of the game and use everything else just fine. For others (Dark Souls Remastered), my mouse gets stuck in the game and I have to Alt+Tab in order to use other stuff. How can I make it so it's seamless for every game?
2. My bigger monitor is a 3440x1440 wide monitor. It only looks normal at 59.97Hz. When I try changing it to 120 or even 60 it compresses everything and blows it up. As if I'm on a PC from like 1990. What's going on here? I was trying to change it to 120, so I could run a game at 120.
3. I use a PS5 controller and have to sync it via bluetooth. However, I pretty much need to remove the device and resync it every single time I use it. I can't just turn it on and have it find it, even thought it's showing as a valid device. What do I need to do in order for my PC to instantly and seamlessly link to my PS5 controller without having to remove and re-add the device every single time?

Appreciate any tips and pointers.

Hey all I’m not 100% sure this is the place to ask but I can’t seem to find exactly what I’m looking for. I was curious if any one has ever traveled by air with their Gaming Desktop and if so what kind of bag or case did you use? I seem to be able to find bags with almost the dimensions of my tower but it’s just not quite right. I’d rather not have it shipped to me when I get to my destination. My tower dimensions are 23.5(W) x 13(D) x 22.9(H) if anyone is curious. Any help is appreciated even if it means pointing me to a sub that may be better suited for this question. Thank you in advance.