Yes, the hashtag feature works for me. Are you logged in to Pixelfed? It seems like you have to be logged in to be able to see the hashtag feed.

Yes, I have a user on pixelfed.social. I like it, and use it daily.
It is kind of like Instagram, but in the fediverse and is open source.
A cool feature Pixelfed has is the ability to follow hashtags, so your home feed will be a mix between posts from the users you follow and the hashtags you follow.

There are some BSD communities on Lemmy/kbin, but they don’t have many subscribers yet.
Here are the ones I know of:
@openbsd
@openbsd
@bsd
@netbsd
@bsd
@freebsd
@freebsd
@netbsd
@bsd
@freebsd
@FreeBSD

I’ve been using EndeavourOS with KDE for a bit under 2 years now (I think) on both my desktop and laptop. It is Arch based and easy to install. And for my home servers I run Proxmox

I’ve been using EndeavourOS for a little over a year, and I am very pleased with my experience so far. The only issue I’ve encountered was a GRUB problem, which I had to fix manually using the terminal.