Out of the way:
Ben Diskin knocks it out of the park in EN dub. He always makes Haida the likeable goof for me. I've always been a fan of both Haida and Ben since 2018 :)
The animation and FX are really great, it looks great.
It grips ya and doesn't let ya go.
It's bizzare. If you like bizzare twists to your base story, you'll like Season 4.
Otherwise, Season 4 and it's last episode felt like Half-Life 1's Xen segment, but with the oddly open, if not unsatisfying end with the same spirit as Half-Life Episode 2... but if it returned to ground zero of the Season. It felt REALLY desperate by how much it devalues previous season's learned lessons. Truly an equivalent of going into space.
I didn't like how Haida was, story-wise, forced into a downwards spiral in a very unnatural way... it's like he picked the Snowgrave route and followed every single bad decision from a producer-written game guide.
If you like bizzarre drama out of nowhere... sure, you'll enjoy Season 4 A LOT. For me though, it's so extremely derailed, specifically from the solid previous seasons, that I'd rather headcannon the rest of their misadventures...
(P. S. as an advice for y'all - please, don't make excuses while running away if you wanna tell someone something... and don't blame others for your problems. These are the most toxic things you can do. Be honest and tell stuff straight up, okay? A lot of Haida's Season 4 misadventures would not happen if he'd just... communicate and not always lie. It's not cute, it's toxic.)