PMQs will definitely change dependent on who is up next.
Starmers forensic mind means he is quick to pick up deviation if fact and "lies" which he can't directly call out.
But Johnson couldn't answer a direct question and could only parrot learned phrases (which were mostly incorrect anyway!) so nothing ever got sorted. It was like a basement theatre pantomime.
Starmer and Sunak would be hood because they are both very intelligent men and whilst they are polar opposite in view Sunak can at least explain his decisions clearly and give Starmer something of substance to actually challenge.
Starmer Vs Truss could either be static (she'll keep saying she'll come back to that and so he'll ask the same questions each week until situation is solved) or she'll U turn at PMQs considering the speed of the umpteen dozen U turns she's already done on her policies before even getting elected!