I don't watch zombie stuff so I can't compare, but I can tell you that the second season of Snowpiercer is really good. Better than the first. I think they do a good job of pacing the story. No filler and they keep the story line going.
BTW, Snowpiercer is also on the USA Network for those that don't have HBO Max. And for those who don't know, it's really a reboot of the movie made into a series. It's not like it happens after or before the events of the movie.