What features that were on previous Notes do you miss on the Note 10/10+

You could use bxactions to long press one of the volume keys to screenshot, that's what I do.

I miss the dual capture feature that someone has a thread about that was on previous iterations. Not really bothered by no LED notification with the app I use to simulate it, I like the way it looks better than the old school physical light.

What app do you use to simulate Led notification?
 
I miss being able to take off the rear lid of the phone, swap out the battery and the micro-SD card, then snap the rear cover back on. My previous Note 2, 3, 4 phones could do this.

I'm still having a hard time adjusting to the power button on the left side. Trying to do a screenshot is tricky now. Sometimes I use the Edge Panel softkey app for screenshots now.

Heart Rate Monitor was very cool feature on my S9 phone. Also miss the rear finger print sensor from the S9 phone too. Don't get me started on the 3.5mm earphone jack or lack thereof.
 
Flat screen like the Note 4. I see less than zero value of the curved screen. Just because Samsung can do something doesn't mean they should do it.