As per the initial comment, those that didn’t vote Tory mostly moved to Reform not to LibDem.
Because LibDem wouldn’t make sense, as a pro-trans, pro-EU, pro-increase tax to pay for public services party they don’t offer anything that Tories want.
That was a wishful thinking comment that some Tories might want to not move far-right, those that find the Tories unpalatable due to their shitty views have already moved.
I would suggest that your more likely to find folks who voted LibDem to move to Green now that they’ve rebranded themselves to something other than crusty hippies. I know my mother moved from voting LibDem to Green.