Personally, I found all the live action Trek spinoffs to have strong first seasons. Why watch, waiting for it to get good, if you don't like it? What if the quality is static and doesn't pick up?
People's mileage will vary. But for me, TNG had as Conspiracy as its only truly good episode in the first season. A lot of the rest were alright, and some were actively bad. The other shows followed suit.
To me, Trek is like pizza. When it's good, it's very, very good. And even when it's bad, it's still not all that bad.
I also have a bit of a completist streak. I have seen all official ST with the exception of one or two Short Treks at this point at least once, and I think I've seen every broadcast-era live-action episode at least twice.
Some of even the worst episodes of Trek -- TOS's Spock's Brain, TNG's Code of Honor, VOY's Threshold, ENT's A Night In Sickbay, for example -- at least have as redeeming qualities that they are so bad that you can mock them while watching. It also helped that the competition back when broadcast Trek was out wasn't as stiff. I probably wouldn't have kept up with VOY or ENT if I had the same assortment of streaming services I do now.
Finally, because I see a pattern of modern Trek usually taking a full season to find its voice and for the actors to get comfortable with their roles, I'm willing to give the show a lot more latitude than if it were its own original creation. Sometimes, that works out like with DS9. It mostly didn't with VOY and ENT IMO, but it was still not a complete waste of time.