The App Store only sends versions you can actually run.
I have a side business, and a few weeks ago I decided to do a pop-up and needed a device to take payments on. I pulled out my older ipad, reset it, and decided to create a new apple account for my business. But, because this was a new apple account and the ipad was still running iOS 12, I was unable to download anything useful from the App Store. I had to find a new device, reset it, log in with my new account, download the latest version of the Apps I needed, reset it again, and relog in with my personal account. THEN, on my ipad, I was able to download the latest compatible versions of those apps.
I went through all that, only to open the Shopify App and immediately be told I had to update to the latest version, which of course, my ipad didn't support. So, yeah, I have this hardware that still works great, but for all practical purposes is e-waste.
I would love to be able to put Linux on this and use it for some hobby projects.
I'm sure that will be considered the app developer's fault, because -they- are expected to handle backwards compatibility, since Apple won't.