Yay, it looks like iPad OS 13.3 fixed the holy-crap-the-packets-are-gone level of lagosity when combining Bluetooth mouse and keyboard. Me thinks this will get some use.
And I’ve yet to cry bugs, bugs, bugs everywhere and not a fix in sight as hard as < 13.2.2~13.2.3. As far as I can tell the only knew issue is the mouse wheel scrolling is broken, and that’s hardly a problem compared to can’t effin’ type ‘it.