Steam Deck

Hi everyone!

So I've got my LCD Steam Deck for around a month and I've been only playing docked (no dock but with a USB-C cable) to my computer screen so far, but I plan on playing it on the go as soon as we go on vacation or as soon as I start playing another game than Frostpunk which requires a mouse.

For now I have a few questions:

-I have a Philips screen Model 273B9 and its resolution is 1920x1080@50HZ. Sometimes the resolution is all fucked up when I turn on the Steam Deck and sometimes it's fine. I've tried disabling the automatic adaptation in the Deck settings, but so far, I haven't found a perfect solution. I'm also a bit lost about the necessity of changing the in game resolution settings or the Steam per game properties settings for resolution.

-Is it possible to have a setup (TDP, Framerate, resolution, effects, controller settings) for when the Steam Deck is linked to my screen and charging through the USB-C cable coming out of it and another more economical setup for when I'm on the go. Ideally I'd want the Steam Deck to detect these situations automatically, but I don't mind having to just select a profile every time I'm going from one situation to another.

-As I'm often buying games from my Surface Go running Fedora or my iPhone (through Firefox, not the app), is there a way to see if a game is steam deck verified on the store from these devices? In a way, I'd want Steam to know that my only gaming device is a Steam Deck and that everything I'm ordering is for this device.

-I also plan on buying around half of my games on GOG. Can someone confirm that I'd get achievements through Heroic? I feel a bit ashamed to say that I've been addicted to trophies on Playstation for years..

-Can you use Steam input to modify controller settings for non-steam games?

-I also haven't found a way to get a swiss vitual keyboard in the UI (QWERTZ with é,è,à). Is it impossible because the Deck isn't officialy sold in Switzerland? I can do it in desktop mode, but the one from the Steam UI is still the one appearing no matter what I do.

Thanks a lot in advance for your help!