My 10.5 Pro works fine and is speedy including with iPadOS 14 Public Beta, but the 64 GB storage mine has can be limiting (even after offloading data to iCloud), and the lack of cellular on the road is a bit annoying. I also considered getting the Logitech Combo Touch keyboard trackpad accessory but it turns out it has serious reliability/design issues according to many owners here on MacRumors. Also, I already have the Apple Smart Keyboard and many apps aren’t trackpad optimized yet anyway. I also already have the Pencil and Magic Mouse 2.
I will buy the next 11” (?) Pro with Magic Keyboard, as I want mini-LED, 5G cellular, and 128 GB. USB (including a second USB port for charging on the keyboard), Face ID, and 6 GB RAM will be nice too. The other possibility is getting an iPad Air 4 but that is less likely as I doubt it will have the quad speaker setup.
I will likely keep both, leaving the 10.5 at work on WiFi, and using the new 11” Pro with 128 GB and 5G everywhere else.