Don't worry, I'm a senior developer too and if I can do it, anyone can.
Serious answer though: there's always a lot of learning in the first few months of a job. You can be senior in one job but then walk into another and half the things you knew that made you senior in the previous job are no longer relevant. But that's ok, you just have to be willing to learn.
Yes, it runs very well. The only problem is that the launcher can be a bit flakey but I suspect that's not specific to the Deck.
Congratulations. What's the new job?
GTA Chinatown Wars (PSP version) on my Steam Deck. I tried GTAV first and found it a bit lackluster (it's very well made, but it didn't really grab me), then thought I'd try Chinatown Wars instead and I've been surprised how much I'm enjoying it.
Absolutely yes, Warband is tons of fun and there's no other game quite like it. The mods are great too, I've put so many hours into Floris and Prophesy of Pendor.
New Balance do some of their models in 4E width (which I wear). Having said that, I think NB's sizing runs very narrow in general, so 4E to me feels slightly wide rather than very wide.