We're experiencing so many federation issues, I think. There's much less content in the communities/magazines I subscribe to when I browse them from Kbin, and in some I only see very old posts :(
My biggest problem has been that the ink always dries up, since I don't print very often, and a laser printer has solved that for me. Now, about 3 years later, the black toner is still at 90%, and still working reliably.
Caddy reverse proxy handles that for me. I just set my domains' DNS to point to my public IP, where port 80 and 443 are forwarded to a server with Caddy listening.
Honestly, I mainly just use Google Play Books, since that's where I buy most of my ebooks. I do download and de-DRM my purchased books though, since I don't trust Google to keep all my books available to me in the future.
On my eink reader, I also use either Google Play Books or the default reader app, "Neo Reader" I believe.
I've found a bug: The article preview buttons disappear after page reloads if bookmarks feature is turned on.
Once they're gone, I can toggle the "show article preview button" twice to get them to show up again, but once the page reloads, they flash briefly and disappear again. If I disable the bookmarks feature, they work as expected.