Not just that. Cognitive dissonance is when someone realizes that they hold conflicting beliefs. Most people that hold conflicting beliefs have not yet experienced that dissonance.
I agree that comments like that are unhelpful/unnecessary, but how is that "for their own benefit"? Other than the actual devs themselves using that as a way to just ignore issues, I do not follow
Probably fine if you just want to install a single OS once and be done with things. But if you plan on dedicating a flash drive to be your Linux install media for the foreseeable future, just use Ventoy: https://www.ventoy.net/en/index.html
Are any of those things that you actually deal with as a beginner, though? Sure, those add complexities, but by the time you start to get into them, you are probably no longer a beginner.
I do the same at work just because we don't get an image editor, and PowerPoint can just do some things better than any other tool that I do have at my disposal.
Is it jpg, or is it actually webp?
EDIT: I found the original /c/animearmor post, and it is definitely a jpg. Not sure why your client seems to be appending
?format=webp