Switching from Windows to Ubuntu

Hello. I dual booted Ubuntu on my Lenovo Legion laptop and to be fair the experience was not so pleasant that I had to go back to Windows before I find better distribution for my problems. So I am here asking the wise if some of you had the same or similar issues and have you found a solution. The main problems i couldn't look over were:

1. The screen resolution - Ubuntu had 100% and 200% zoom level. My screen resolution is 2560x1600. 100% is to small, 200% is too big. There is an option to custom set the zoom level, but it just doesn't work and makes the PC laggy - exactly what the feature says will do if you enable it. I currently use 150% on Windows which is exactly what I need.

2. Bluetooth not working - this is just a mess. Apparently my laptop uses the same card for WiFi and Bluetooth and it is just a mess trying to make it work. I gave up. I have expensive Logitech equipment that I just cannot use reliably. I have to use the dongles but that's a problem on its own - Logi doesn't have Linux software. There are some community based alternatives. Still i would rather have the Bluetooth working than messing up with usb ports.

What do you guys think. I really like to throw Windows away because of reasons well known, but I guess I had some bumpy start. Any guidance?