Generalizing that into 'tech is depressing' is understandable since it is literally designed to occupy our attention, but I don't think it's an accurate view of the world.
What is depressing is the current effect it has on society and a large percentage of sci-fi describes new ways humans make each other miserable. I can believe (but have no numbers) that that kind of sci-fi has become less popular.
'Big Tech' as you call it, in the last decade, enabled us to work from home during the pandemic via zoom calls, and still shop and get food delivered.
Is that 'inspiring'? I guess that depends on what inspires you.
WebRTC is nice and I like it. Work from home is lovely.
I think the internet is having a rough time with things, and that in general corporations have become more greedy and more bold, which overshadows the smaller improvements.
Being able to summon a car to my location at the push of a button and to be able to track it as it arrives is amazing.
Being able to make money at any time by giving people rides in my car is great too.
The legal system of distinctions of different kinds of workers that allows Uber to exploit drivers - not so great.