Slightly off topic for this thread, but:I'm also using Keychron K3 low profile white LED with brown optical switch.
Previously using blue ones for a month.
I've tried also the red switches and didn't like it so much, felt mushy with short actuation point.
Chose the brown eventually because I couldn't stand the loud 'ping' noise with the blue switch, but I really like the clicky feeling.
Right now still getting used to the browns. So much quieter but less feedback, probably should try the banana for the right bump feel.
The board it self is great, no issue. Great aluminum built, stable with the feet fully extended (I got the K3 v2).
Only need to get used to the cramped arrows which is the right decision for you if you took the K1 v5.
But my ideal layout maybe would be the exploded TKL like on the Q1.
I'm always on cable with my Mac Mini, but I tried once using bluetooth with my iPad Pro and definitely can feel the slight delay between inputs. Hence can't speak for the battery performance.
I've been looking at Keychron keyboards - I currently use a Ducky Shine 7 with silent reds (I share this office with my wife, and my old keyboard had blues which were too noisy). However, the mushiness of the reds annoys me.
I was looking at a mechanical with browns, but... should I be looking at the banana and/or mint low-profile keyboards? I'm not specifically after a low-profile keyboard, just a great typing experience. Sounds like browns are better than reds (obviously), but you're saying banana might be better than brown?