I've never understood the need for synchronization of transient content. It adds to much complexity, attack surface, and bulk to any project. Is it really that bad to just run a secure native, non-web, reader on every device?

And to answer my own question: No, it isn't that bad. It's fine.

I use a programm that downloads new articles and pops them in a folder via IMAP. I sign into my email on most devices, be it IMAP, web or ActiveSync, so I can read articles anywhere and my mail server handles syncing read status etc.

Sounds interesting! What program do you use?

Sounds like my toy-project:

https://github.com/skx/rss2email

Which is a "port" of the very old/established python project with the same name:

https://github.com/wking/rss2email

If you have a server somewhere, you use cron and configure a list of feeds. Each time a new entry appears you get it sent as an email.

See also this recent post:

https://news.ycombinator.com/item?id=22899469