Shameless plug (sorry) but I’m working on one too! It’s a web app that works on both desktop and mobile: https://slemmy.libdb.so.
It is a free-time kind of project (I work on it after my actual working hours), so it might not grow at the same pace as other newer apps, but I’m trying!
Source code is at https://libdb.so/slemmy, AGPLv3 license.
I think they definitely could’ve made a profile page while keeping the discriminator around. Something like discord.com/u/diamondburned/4507
.
(For various reasons diamondburned#4507
is not too ideal for a URL, but it’s a small difference. Right?)
I’m adding this into my Lemmy client’s README.