This is not true. Desantis did not "bend" for Disney. People read Trump sycophants' tweets and take them as gospel. Desantis took governance away from Disney and created his own board. What he didn't do was dissolve the special "district", because that would have left $700 million in Disney bond debt as the responsibility of the 2 counties where Disney lays, instead of remaining a liability of Disney.
He didn't exactly cave on open carry, the florida senate leadership opposed him on it. IMO, he should stick to his guns and veto whatever they send up, but it's not like he was the one who necessitated dropping the open carry amendment.
OTOH, Trump caved immediately on the issue after Las Vegas and issued an executive order to ban bumpstocks. Trump was best at exposing himself.