Doesn't sound like you've watched any good ones.
I personally learn a lot more while watching one of the streamers I watch, listening to their thought process, seeing what they do in many different spots vs. just playing a session myself. There's 4 or 5 streamers I watch in total, 3 of whom I focus the most time on. WHen I watch a stream I rarely do it for entertainment purposes (although I do that also, and have it playing in the background while I am playing). I take a proactive approach to watching the stream, thinking about what I would do in each spot, taking screenshots of certain spots (especially in PKO's) & then reviewing spots where I wasn't sure if I agreed with the streamer's line, or their view on something. (even just checking the ev of PKO calls by using the Bounty Discount Factor (in Dara's book), &/or Bencb's bounty chart).
I also watch a cash game streamer who plays at same & slightly higher buyins than I do. He has occasionally ran challenges where he will drop back down to 10nl and work his way up (ZOOM-style 6max). It is great to watch this guy and he has been extremely helpful/friendly to me. I have also learned a ton off this guy (it helps that he is the winningest player in that format online period!). Rarely, I will also watch a cash game player who plays high stakes online (it doesn't help me too much at my stakes but it is still interesting to watch).
I watch two MTT streamers, both playing Mid-stakes online. Both are consistent winners for the past 15+ years. One has only had 1 year with less than $100k in profit. That guy plays 40-50+mtt's/ session often playing over 20 tables 'while' streaming and at stakes $40-to-$525 (an abi of ~$90). It's inspiring to watch him play and witness his work ethic. He's also been very helpful.
The 2nd guy I watch, puts in consistent volume, not as many tables as the one guy but has been a winning player for 15+yrs. as well. Originally from USA but moved away after BlackFriday and hasn't been back home to live since. What I like about this guy is that he's willing to explain his thought process for each and every hand. He's a fast talker and is constantly sharing his thought process. I find it to be excellent material! (I'll watch taped sessions of this guy... not necessary to be 'live' at all).
Other things these streamers have taught me is how to study, how to train... how to train using different tools available today. And most of all, what it takes to be a winning player and what that lifestyle to get there really looks like.
Honestly this is just barely touching on what I get out of watching these streamers. It is well worth the price I pay to sub to their channels. (and I prefer to sub as opposed to watching for free)