Hi JSWolf, Gormagon and DJUNGELSKOG,
The reading update I mentioned has shipped.
JSWolf, this covers most of your list. EPUBs now flow by default instead of being locked to one page size, and you get live controls for font size, line height, margins, hyphenation and alignment, plus your own uploaded fonts. The typeset book-pages view is still there as an option if you prefer it.
Gormagon, fair question. Signing in is what lets your reading position, highlights, notes and search follow you across devices, and PDFs are now faster with a flowing-text mode. You can also download the original EPUB or use a print view anytime.
DJUNGELSKOG, that's the difference I'm aiming for: less of a catalogue manager, more a calm place to actually read.
Have a look at
https://bibrium.com and tell me what still feels off.
Benjamin