No mention if it is EME-Free (no DRM playback possible)
DRM/EME/WidevineCDM integration disabled by default. They can still be enabled via the usual preferences. They will also be fully enabled like in FF (including downloading and installation of trusted binaries) if user enables "Just Make it Work" preset.
Settings and prefs and bookmarks sync is a strong want from me, I just want to do so self-hosted, and not via Mozilla’s servers.
Konform Browser still supports enabling that and has UI to make configuring custom Sync- and Accounts server endpoints more straightforward.

Separately, profile import feature also supports other Firefox-based browsers as of recently.