I have hundreds of asset layers and want to get a count of the number of features in each one. Bonus would be to have that broken down by an attribute type within it.
It would be great if Ops Dashboard or Web App Builder supported this, but it looks like they only deal with individual layers.
You can use the info summary widget in WAB to display feature counts

You could also customize this to display all features with the Developer edition of WAB
Yeah, I have been using the Info Summary widget but it seems to only show the sum of one attribute at a time. If the dev edition will work, I'll try that route.

Info Summary on Web App Builder has been a vital key to displaying and using data. Has anyone found a way to replicate this in Experience Builder now that Web App Builder is going to be discontinued?
The 'workaround' using the near me widget instead really doesn't work, which is a shame as Esri seem to be moving backwards.