It 100% depends upon who you work for, and what you're hired to do, and how that work is performed. I've worked jobs at both ends of the "stress scale" and most everywhere in-between, and it mostly comes down to the boss bein' the main decider if it's stressful or not to work there. A good boss can turn even the most stressful tasks into a fun challenge that everyone's on-board with solving. A bad boss can make even the simplest most routine tasks a daily nightmare that must be dealt with and tolerated for the sake of the paycheck.
I just wanted to bring up the stress caused by "passive" bosses, who attempt to be everyones buddy, avoiding even the faintest whiff of having to actually "manage" employees. Especially employees unable to integrate themselves, after months, into a workflow wothout causing an equal amount of work for others to decipher and clean up.
My favorite bosses jumped in on a fairly regular basis and worked alongside their teams, and knew their business well enough to actually be useful and helpful in that regard. They also treated their employees like actual fellow human beings, and when they profited, so did their employees, so it was kinda all-around win-win scenarios for everyone involved. Sadly, those bosses were a bit of a rarity. :(