A few sources around, here’s one from https://news.law.fordham.edu/jcfl/2024/03/13/understanding-amazons-alleged-anticompetitive-practice:

the FTC claims Amazon punishes third-party sellers for offering lower prices on other websites.[2]

Select Competitor – Featured Offer Disqualification (SC-FOD).[6] SC-FOD is an algorithm that prevents a seller from “winning the Buy Box” if it finds that the seller sells that product for less on a Select Competitor’s website.[7]

References for 2, 6, 7:

[2] Complaint at 85, FTC v. Amazon, W.D. Wash. Case No. 2:23-cv-01495-JHC (Nov. 2, 2023).

I’ve had trouble with the battery in a wireless Keychron.

Have you looked into building your own keyboard or finding keyboards with replaceable mechanical switches?

I know you said 100%, but for example, in a quick search I found the Razer BlackWidow V4 75 has replaceable switches.

What I ended up getting was an ErgoDox EZ split keyboard. Before deciding on switches I bought a pack of switch samples from Amazon to see what I wanted. It was great to be able to configure the keyboard with the exact feel I wanted, and have the options of swapping if a switch breaks down or I want a different feel.

The fire fighting plane is the Canadair CL-415 (Super Scooper) – https://en.m.wikipedia.org/wiki/Canadair_CL-415

Plane getting water – https://m.youtube.com/watch?v=TLys5Wa7zhg

Plane dropping water – https://m.youtube.com/watch?v=2fH5kdShKNw