He wasn't fluent; he was clearly reading the speech, but it was perfectly understandable. Obviously, nobody would assume he was a native speaker, but fair play to him for using the language.
He clearly wasn’t fluent, that’s very kind. His pronunciation was woefully robotic so as to be year 1 learner.
As someone who studied Welsh in Aberystwyth Uni for 10 weeks prior to his investiture, so he could communicate in Welsh, he’s clearly forgotten it.
Not been doing much Prince of Wales stuff since the 69 fraud obviously, otherwise he would be fluent.
He’s flogging a carefully crafted PR message to protect his family business. ‘Koff Charles.