Not really the case. Right now the combined anti-no deal brexit opposition have Boris strung thus a general election is not in their interest since they now have the numbers to consistently defeat Boris on any bill.
Why have an election and potentially lose seats to Boris when you already have him in checkmate?
As for Corbyn, if he is smart, he will aim for a vote of no confidence and form a coalition government if he truly desires to be PM. That is far less risky than yet another general election.
Side note, this is Boris’ 3rd day as PM in the House and he has lost 5 whole votes. LMFAO