Is it possible instead not to show the conditions and transaction fields to the categories where the price is not shown? and for example leave only the conditions field and remove the transaction field?

Themes supports just hide both or show both as of now.

Please help to make it configurable like in custom fields, in which category to show and in which not to. will really appreciate.

An ad of obituary/death with these fields may not make sense and same for business service providers who offer/showcase their list of services , to give few examples. 80% of ads are not C2C but B2C or B2B and these days, D2C. so do consider.

this feedback is coming from an industry veteran with 25+ years experience. thanks

There is no change planned for this feature.
You may use custom fields instead.

Thanks. that will help me further to decide - if to scale-up on this platform. cheers.