Hello everyone!
I have owned several iPad Pro 2018s, and all of them have a similar issue with standby time. I'll charge them up all the way, use them for a couple hours, and then leave them sitting for a day or two. By the time I get back to it, they're usually most of the way drained and I have to charge them up again basically every time I need to do anything with them.
The one I have only has about 180 battery cycles as reported by CoconutBattery, so it's not that the battery is completely shot.
Has anyone else had similar issues, or have any tips to improve standby on the iPad?