Trump isn’t in office.

At the root of this conversation is the uncomfortable fact that the Constitution does not require the Speaker of the House to be an elected member of Congress to begin with. There is a school of thought which holds that the implication is strong that the Speaker should be an elected Representative but this is not an actual requirement by any reasonably strict reading of the text.

More concerning than that is the fact that the Speaker of the House is with few restrictions eligible for succession to the Presidency.

If the right faction of the Republican Party controls Congress in 2023, they could in fact make Donald Trump Speaker of the House, and by whatever means they make possible, remove the President and Vice President from office, or simply continue their 2021 strategy and cause some arguably Constitutionally valid scenario by which he becomes President.

It's no more far fetched a possibility than some things we've already witnessed, so dismiss the possibility with caution.