Since updating to 26.0.1, the Update All feature in the App Store constantly fails on my iPhone, iPad, and Mac. I have to press the button a few times or update the apps individually.
I've noticed the same thing on two iPhones a 13 mini and 13 Pro Max. My mini is my backup phone that I update when new OSes are released so it had a number of apps to update. I might get a batch of up to 5 apps updated before it stops. On my Pro Max, I only had 6 updates just now and I could only update them individually. Restarting did not help.