Brings me no joy to say this but unfortunately, I absolutely hated the S4 finale. Literally loathed it entirely. An overly long / sentimental mess that drags & diminishes the stakes of its storytelling by refusing to apply any emotional consequences. A total & utter, complete cop-out & lacklustre end to what was mostly a great season.
The sad thing is the Duffer Bros have created a truly extraordinary villain in the form of Vecna... But it's become so obvious that main protagonists are exempt from the inevitability which haunts his other victims so there's really no threat presented to anyone we're invested in - despite his intimidating visage / fascinating backstory. Hence, it generally feels very superficial & disappointing as his potential as an antagonist's squandered.
The sad thing is the Duffer Bros have created a truly extraordinary villain in the form of Vecna... But it's become so obvious that main protagonists are exempt from the inevitability which haunts his other victims so there's really no threat presented to anyone we're invested in - despite his intimidating visage / fascinating backstory. Hence, it generally feels very superficial & disappointing as his potential as an antagonist's squandered.