Ah fair. I've never seen any of the Star Trek movies 😅
I started with Discovery, I liked it at the time and jumped back to TNG and went from there. I ended up skipping like half of TNG and all of Voyager though 💀
To me I feel like Ethan peck is actually very good at acting as Spock, but the writing is extremely unspock like and so it doesn’t feel right. Kirk’s writing also seems more like the mythos of Kirk remembered as by the 24th century than the actual buttoned up officer of the 23rd.
When I think of Spock in the original series (#TOS), I find more than a few things implausible.
Would, for example, Spock really know impossible odds with multiple unknown variables to several decimal places? More seriously, in TOS, Spock never satisfactorily explained the Vulcan logic for logic. They've addressed this since, but I had realized that the attachment to life is emotional, not logical, and therefore concluded that in denying emotion, Vulcans could have no logical reason to live.
Even Leonard Nimoy's Spock addressed some of this in the movies, and they aren't quoting odds to ludicrous precision anymore, so I find the more recent iterations of Spock much more believable.
As for the acting, Ethan Peck plays a younger, less experienced Spock. Given Vulcan lifespans, this probably shouldn't make quite the difference we see. But that's how I've accounted for that difference and I've been interested in seeing the backstory.