Maybe. If the Republicans are going to nominate someone else, let's say Youngkin or Rubio. Then Trump decides to run 3rd party. He will get 15%-20% of the vote in the General Election.
Biden gets reelected easily. So DeSantis may want to avoid that clash and wait until 2028 when the Republican Party can finally heal from Trump's self-destruction.
There's still time for Trump to realize. "Maybe I should not do this" and hopefully he will. Biden needs Trump to get reelected.
Poppycock!