Yeah, it took me long enough to get used to the changes in 5, I like the game and am somewhat inclined to stick with it.
If you want something Civ 5-like on mobile, check out Unciv. Its an open source and using Civ 5 as a template. https://yairm210.itch.io/unciv
6 was free on epic games a few years back and it was recently on sale on steam for just a few dollars.
I picked it up on steam for the Linux version and it was pretty addicting. I never get games dlc and I don’t think I’m good enough at the base game to take advantage of the different things the dlc adds.