That was my point. Why bother making a prequel to TOS when it ends up looking like it could take place centuries later? If you’re going to do that, why not just make a show that picks up right where the TNG era left off?
Because while the technology may be similar; the characters and the underlying political situation for stories is very different.
In the 23rd Century characters still act like actual human beings and argue with each other, have disagreements, but in the end they work together to get what needs to be done to accomplish the goal of the episode. Also in this era the prime directive is executed differently in that if a planet has been contacted by extraterrestrial species, and has something the Federation needs; the Federation will initiate contact regardless of the planet's technological level.
Also they aren't as judgmental when it comes to a planet's society. If the planet decides to implement the death penalty or other harsh sentences for crimes, or even engage in forms of slavery; the Federation stance is their world is theirs.
In the TNG and later eras; Starfleet is dominated by characters who honestly rarely disagree and join in groupthink. It makes them very boring and overly preachy at times. Also the prime directive in the 24th century and beyond basically has the Federation staying out of contact with any world that isn't already a member of the Federation no. (Yeah I don't get how that works either but honestly that's how the prime directive seems to work in the 24th century.)
Picard is a prime example of this philosophy. Anytime Worf does something that is absolutely accepted by Klingon Society, like killing Duras after Duras killed his mate; Picard even says outright that the Klingons consider the matter closed, yet Picard dresses down Worf because Wharf didn't conform to human society values.
But to me the most hilarious thing was that the only time Picard tried to advocate FOR following Klingon tradition was when Worf wanted to commit ritual suicide after suffering a major back injury that would have left him paralyzed.
And then there is the time Picard threatened to make major changes in the command structure of the ship when Commander Riker wouldn't give him more information about the USS Pegasus incident, because a Starfleet Admiral had ordered Riker not to talk about it.
So yeah the hypocrisy of the 24th century abounds. They're not so hypocritical in the 23rd century..
In general the technological level of the Federation has always been just a backdrop in Star Trek. The basic technology hasn't changed in Star Trek for over a thousand years now. From the 22nd to the 32nd century, the ships still use Photon torpedoes, phasers, and warp drive.
^^^
These are technologies that are always a part of any Star Trek series no matter what era it's in, but overall the tech is there just to serve as another occasional plot complication to a given story.
What matters in most stories is how the crew react to the situation; and the psychological attitudes of the 23rd Century compared to the 24th century and beyond are very different.