The Sonata form is more evolved musical architecture than baroque forms. It is a closed and ordered structure. As such, the whole is thing is the story more than the parts being the story, say in a Bach suite of dances or in Scarlatti's short binary forms.
The sonata allegro form used in most opening movements capitalizes on and depends on the listener's sense of tonal hierarchy in its moves from the tonic to the dominant (with repeats added to reinforce and to give the listener another chance to digest, recognize, predict and delight). And the fast-slow-fast across many three part sonatas is another aspect of contrast and overall architecture.
Without knowing the exact answer to your question, I would guess that it would be unlikely for your mentioned composers to perform the sonatas even without the repeats, let alone only one movement or combining different movements, with the exception of the period of time that they might be extemporizing / creating before publication.
On the other hand, I could imagine Clementi playing his more virtuous runs separately in an effort to sell a few pianos... :-)