What is the crowd's opinion of qimgv?

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FYI:

There are some image viewers for Windows with AVIF support:

PhotoQt, qView

qimgv can also save AVIF

when I was researching jpeg-xl I've stumbled upon an alternative image viewer. It's been only a couple of minutes since I've been tinkering with it but I feel like Qt5 is so much better than IrfanView.

qimgv - minimalistic, performant, and highly configurable image viewer. I've spent a lot of time with alternatives like sxiv, feh, pqiv, nomacs, but they each have some significant flaws either in terms of performance or features.

ums - Universal Media Server