Imagine you have conceived a child in 2008 and you and your spouse are awaiting the birth. You watch the child grow for 14 years, then in 2023, the kid says, OK, I'm done, and disappears into mist.
This is the disappointing outcome of the last season of Archer. There is nothing to indicate that things are wrapping up. They even introduced a new character, who contributes to the plots, but ultimately does little to change the dynamics of the central characters.
We are expected to bid farewell to a show and to characters we have watched and came to know (often with much too much information about their degenerate lives), and it ends with the left shoe dropping with no opportunity for the resolution of the other shoe.
This is bad, lazy writing. There should have been SOME resolution, where the agency was shut down, and the characters going their separate ways, possibly with a "where are the gang now", sort of wrap-up.
But there wasn't. It was dropped in our laps like uncooked scrambled eggs. It showed an disgraceful disrespect to the audience who stayed with it, through the ups and downs, despite the narcissistic personalities of the characters.
How does one respond to that? Well, one can't. The best I can do is give this episode, and the entire season, a lackluster review. It's pretty weak, but it befits a show that ended on a weak note.