I've not seen anything official. There are are undoubtedly minimum RAM and OS version requirements... that would be a start. Recent versions of Explorer work great with a 2020 Google Pixel 4a 5G (6GB and Android 11) and a Samsung Galaxy Tab S6 (8GB, Android 11). It works a little less well with my Motorola Moto G6 (3GB, Android 9) but better if it's the only program running