We can agree on wanting a better internet :)

I participated in the design of those filters, so no, I do not deeply dislike the way they look.

This gaslighting is not convincing. No matter how many filters AVIF has, I distinctly remember tile artifacts being particularly disturbing. More so than individual blocks, whose size and border effects differ; tiles are a straight line through the entire image.

JPEG XL does not have this problem because the design and codestream enables parallel decoding (thanks to per-group offsets encoded in the 'TOC'), hence does not require separate tiles.