"That doesn't mean that Trump is going to get a lot of heat if he doesn't undo the increase in prices that happened during Biden's time"

No doubt you're right about this.
Teflon Don.

Is there anything, in your opinion, that Trump can do that will cause him to lose supporters ?

They won't hold him accountable for not lowering prices, even though he vociferously
stated that he would lower prices during his campaign. Trump actually invented the
word "groceries", so I'd think it would be a high priority for him to get the price of
eggs and bacon down. I know I watched and listened to him say it over and over again.

He has no Health Care plan ( i know, I know, he's got concepts ), even though he has stated
for going on 9 years that he'd get rid of Obamacare and replace it with a terrific new plan,
which would be lower cost and better benefits.

I could go on, but what for ? Trump won't be held accountable for anything. Covid pandemic
proved that.
I'll give him credit for 1 thing, he sure can spread a pile of manure out there.