Simply there's only a "hoo-ha" from the Johnson fanboys in the Tory party, along with the usual suspects on here from both left and right.
Sunak will probably steer well clear as he knows Johnson is now politically toxic as well as still after his job. He will want "partygate" to die a death quickly and all this storm in a teacup does is remind voters of the events in Downing St. during covid. ACBA will probably delay Sue Gray's appointment by a few months and normal service will resume.
The ridiculous UQ in the commons yesterday rather shows up how desperate certain folk are. John Crace sums it all up beautifully in the Guardian today, well worth a read