Yeah this didn't feel like Black Mirror really and apparently there's grounds for that: the last episode and "Maizy Day" were apparently supposed to be a part of some spinoff-y horror anthology series called "Red Mirror" and to be honest, barring the first episode, the rest did too to me. I'm so disappointed, this is what I waited for for all these years? Should've just gone with the Red Mirror and done like one long special episode, anything other than this really.
The first two episodes were OK even if the second one didn't feel like Black Mirror either and I did enjoy the wacky last episode, just not as Black Mirror.
Oh well, I haven't seen the older seasons probably since they came out so I'm gonna comfort myself with the good old days.