Reading your post filled me with nostalgia!
Besides that, yes, I think your perception is correct, or at least I do perceive the same.
About movies and series, there's an obvious trend of revival of classics, but to be honest it feels like a vulgar attempt to make money on people's nostalgia. Yes, young adults are those who earn money, those you can milk. And what's better than nostalgia as a trigger?
I'm now thinking of star-wars: bought from Disney, who immediately spawned tons of material and started to dictate what is canon and what not. And if you happen to write some book set in the same universe (as many old ones already exist), keep your lawyers ready.
Let's face it, taking an old setting, making some cheap content that keeps winking at old patrons, and filling the gap with extra special effects, does not make a good movie. If anything it makes me feel sad about the forever gone old times.
On the plus side, there's always a new place where the hordes of corporation-driven normies are not able to get quite yet. And the recesses of the Internet (such as Gemini) seem to be the right place where one can still find that authenticity we all crave for.
I agree completely. It's all just a cash cow to milk now. There are a handful of exceptions (the Doom reboot in 2016 is absolutely kickass), but the majority of reboots and re-dos take the same road that Star Wars has taken (to be fair though, people said the exact same thing about the Prequels). I know that the end-goal was always to make money, but I feel like today the corporate overlords are whipping and yoking everyone all the way down the line to just make whatever the algorithms say will make them maximum cash with minimum effort.
Additionally, it's a huge "fuck you" to fans who have spent their whole life learning canon, lore, and generally studying everything about a series, when a company just buys it and says "none of this is canon anymore."