No. Honda does not have a launch gear on any of their CVTs. Although the current ones are different than their predecessors, I still wouldn't buy one today.

was wondering are these good transmissions

Not really, they seem to be better than Nissan but worse than Toyotas - but still much worse than a regular auto.

And even Toyota is having MAJOR issues with theirs, for example these two brand new cars stuttering:

https://carkiller.com/scottykilmer/qa/2022-corolla-hatchback-cvt-shuttering/

https://carkiller.com/scottykilmer/qa/2022-corolla-already-having-problems-cvt/

CVT transmissions are not good in general, 150k miles is doable, but in stop and go driving much less.

do they have launch gears?

Not as far as I know. 

Having driven a Toyota launch gear CVT, it's disappointing - felt like an auto that's going out and has a slow 1-2 shift.

I agree with @kp, I wouldn't buy one either.

I guess my opinion will be different here but here's the thing, so many new cars are being made with cvt so in many cases if someone wants to buy new then it's cvt. While I would also prefer the regular automatic transmission, but when it comes to cvt I would go with Honda or Toyota over other brands. I bought a new Civic with cvt and I don't plan on keeping it for 200-300k miles and I also do my own maintenance (changing oil and oil filter but also changing the transmission fluid every 30k miles) so I went ahead and bought it and so far it's fine and haven't had any problems. So if you're fine with these then yeah buy one, but if you want to keep the car for a long time then find something with regular automatic.

Also, since you said 2020 Civic you might be better off considering new in this market if you decide to go forward with purchasing one).