I can click it and it highlights, but there’s no progress bar, loading screen, confirmation page etc.

That’s the only place to report bugs that I know of. I’ve been able to submit reports in the past, and it looks like other people are submitting reports today, so it’s probably not a general problem. Have you tried using another browser or OS?

I visited the bug/report/ideas pages of Arena many times over the years. Every time, I got the impression the design is either willingly neglected, or intentionally poor in user guidance. In one or two few occasions, I managed to find my way through to complete what I wanted, but more often I gave up in frustration after a while.

And while that is not pretty, I don’t find it much surprising. The devs probably have a backlog of unfulfilled tasks well beyond next year, since there are always more ideas (and they turn out more work intensive than anticipated) than the devs can handle.

So there isn’t really much incentive to make sure people can easily report and suggest a ton of additional stuff.

Speculations aside, your suggestion makes a lot of sense. I also noticed that list offers mostly irrelevant stuff, although in other situations they present a well behaved list, only showing relevant entries.