I think the main complaint is “if it ain’t broke, don’t fix it”.

I like the old UI. I had no complaints. So wgy change it? So much developer expense for zero user benefit.

I used that one revert Gist that NTTS talked about and it’s been the same as always ever since. If Discord makes an update that removes the old UI then I’ll use an old version until they absolutely force me. I will not voluntarily use the new UI, because I think it’s not as good, and that’s it.