The problem is the mental mediocrity of the developers,

There’s no reason for this to have ever happened; apps should never have been allowed to query the clipboard in the first place. The clipboard should be the client in the operation, requesting that the app accept data, not the server promiscuously making itself available to any app that wants it. That way, poorly coded apps that might otherwise be susceptible to exploitation (in similar manner to SQL injection, for instance) need only fear ‘bad data’ from the system and the system needn’t fear underhanded attempts to query its state — and that ‘bad data’ the system might supply from the clipboard … well, that’s a problem anyway (there’s no way to stop someone pasting something that will exploit a flaw now).

And the solution Google has implemented going forward from Android 10/Q (rendering clipboard managers non-functional) is yet further evidence of that intellectual bankruptcy: there should never have been a need for third party solutions … the system clipboard service should have always provided that facility right from the very first clipboard ever implemented on the very first operating system ever to supply one … and the fact that they haven’t updated their own solution to supply the functionality they have taken away from the third parties who sought to fill that unnecessary gap in functionality just embarrassing, frankly — it’s only because they’re such intellectual lightweights that they aren’t embarrassed.

This whole situation just highlights how inadequate the solutions we’ve been provided with have been all along … and, more significantly, just how inadequate the developers are — they’re nowhere near as clever as they’d have us believe.