Agreed. Enterprise is from a timeline created by First Contact and Discovery is just fan fiction.
One only needs to see CBS's stamp of approval to know that DSC is not fan fiction.
ENT is factually not an alternate timeline, much less one that branched off from
First Contact, since that movie never created an alternate timeline in the first place:
"Regeneration" (ENT) was designed as both a sequel to
First Contact and a prequel to "Q Who" (TNG) and all the other Borg stories set in the 24th century, to the point that the creators have gone on record that they were part of the same timeline via a predestination paradox. Besides, "Relativity" (VOY) states in black and white that this is one single time loop: "
The Borg once travelled back in time to stop Zefram Cochrane from breaking the warp barrier. They succeeded, but that in turn led the starship Enterprise
to intervene. They assisted Cochrane with the flight the Borg was trying to prevent. Causal loop complete."
(There's also the little problem that the Abrams' movies, which branch off before the
First Contact time warp got started, clearly show that ENT "always" existed in the past, which would only be the case if all was one timeline.)
I really don't get the obsession of making ENT an alternate timeline, given that that's not how the show was written, there was too much setup leading into the "original" timeline in the first place, and there's no reason to, at the end of the day.
Seriously, it's kinda like writing Saavik. Do you specifically describe her as looking like Kirstie Alley or as Robin Curtis, or do you just write "Saavik beamed down to the planet" and let the reader visualize her as they choose?
I confess: the last time I wrote Saavik, both Alley and Curtis flitted before my mind's eye from moment to moment. I didn't feel a need to consistently visualize one over the other when writing that book. Saavik is Saavik, regardless of what she looked like in one particular movie instead another.
Funny, it seems like practically all the novels (cover art, narration, etc.) always uses Curtis's likeness. Fair enough, but since I was one of those people who default to Alley's likeness when thinking about the character, it's kinda annoying. (There's a fan site for the current
Star Trek RPG that, when making Saavik NPC stats, specifically made two versions, one with a photo of each actress in the role, specifically because of this question.)