I mean, the first season of Discovery was essentially a new crew on a new ship in a basically new/heavily re-imagined setting - the only caveat being Burnham's extremely close connection to Sarek and relation to Spock, which I still don't really understand the reasoning behind even if it paid off in season two.
Discovery's revisiting of TOS started to grate on me towards the end, especially since they essentially invented a new and excellent character with their Pike but he ended up being stuck retreading the events of The Cage and, for the last few episodes, confronting his space-wheelchair future. I wasn't a fan of the first season of Discovery at all because I wasn't interested in the story they were trying to tell or the tone they set, and none of the characters clicked for me, but in some ways I find it more commendable than season two (which I enjoyed watching a lot more). I agree that Discovery can give more insight into TOS, but I feel like it mainly did that by expanding on Pike - I didn't think any of the Talos revisit stuff or Pike knowing his future injuries in advance really added to TOS at all, beyond making Spock's ability to casually talk to the Talosians in The Menagerie make more sense, but that's opinion-based obviously.
When Seven showed up in the trailer for Picard, in that split second, part of me just thought "oh god, here we go". I like Voyager more than almost anyone else in the universe seems to and Seven is one of my favourite characters, but teaming her up with Picard raised a red flag for me - the writers are just shoving together iconic characters we like and hoping the magic sort of happens from there. I know that's a dumb reaction based on nothing more than a short trailer which told us little about the show, and I hope to be proven completely wrong (I have ultimate faith in Patrick Stewart and Jeri Ryan to uplift any material anyway).
Perhaps unpopularly, I'm still vaguely optimistic about the Section 31 series, because even if it's a trainwreck, it'll hopefully be a trainwreck that doesn't lean too heavily on existing characters, locations and ideas.