You're not wrong, incremental games tend to not really have a difficulty/challenge or game-over aspect per se. It's more about casual chill numbers go up vibe. However they can be challenging and have room for expression/skill if you wish to beat them in most efficient/fastest manner. Or perhaps obtain difficult steam achievements. Or self imposed rules or challenges. Or just enjoy seeing how far you can get in the endless mod with all the upgrades. But yeah there will be a couple prestige/damage checks, some likely in a chill way where if you can't beat the check it's not necessarily hard game over, but you do not get a unique artifact which is required to unlock a "last" boss/ending and achievements.
Thank you for the feedback and wishlist! :)