Far Cry 5 never gives you a moment of peace, it just gives you constant chaos. You're constantly being attacked, or doing the attacking yourself, and no-matter where you are, there is always action going on around you. There are always people chasing you, people screaming for your help, and you quickly get inundated with more missions than you know what to do with. There's always someone calling you over for a side mission, multiple voices speaking at once, advising you to do a thousand different things, while gunshots crack through the air all around you and explosions go off in the distance. It's just a sensory overload of multiple activities happening at once, all the time, with little meaning behind any of them.
The problem with this design philosophy is that if all a game offers me is constant action, how can I be expected to keep appreciating that for 30 hours? There has to be a balance, and there has to be downtime. Downtime gives the action meaning, because it keeps things surprising, it keeps things interesting, and it gives you time to breathe. It lets you explore and take in the scenery, collect yourself, and prepare for the next encounter. If all that exists in a game is constant action, then the action doesn't really mean anything. The action quickly gets stale because there's nothing to supplement it.
Consequently, Far Cry 5 is predictable and repetitive, and it didn't take long before I found it to be utterly exhausting. Don't get me wrong, it's an adequate game, I suppose. Everything works as intended and the gameplay at its core is still fun, it's just that the design is so damn cluttered, which just drags everything down so hard.
I'll pick out a few things I like... I like that the radio towers are gone. I like that crafting is more incidental now and can be mostly ignored, which is a nice surprise from Ubisoft these days. I like that they added a way to choose your sex at the start, but I'm not sure why they bothered, because they put very little effort into it (if you choose female, characters will still refer to you by male pronouns). Apart from that though it's just another Far Cry game. The same thing all over again in a different location, except this time Ubisoft's obsession with filling the map with "stuff to do" and "things happening" has reached critical mass, to the point where none of it is even the slightest bit immersive or engaging.