Matt Gaetz is a source of money.
His billionaire backers fund other wingnuts like Boebert, using Gaetz as a conduit. Especially the foreign donors like Putin's oligarchs.
Mike Johnson wants to keep the dough but ditch Matt Gaetz, whose past is a political liability.
Eventually there's going to be witnesses & evidence that will stick on Gaetz and they don't want it to be in October.