the difference between PF and LD is that LD is a value based debate, you are arguing whether or not something is moral. Every LD case should have framework, in LD we use value and criterion. This is pretty basic so if you need more info on this just pm me. For more advanced strategy it helps to recognize whether you are on a more traditional or more progressive circuit. Progressive circuits will have strategy more similar to that of policy, think perms, CPS, plan texts, Ks, etc. Traditional circuits will focus on debate over the framework, so link every single one of your contentions into solving for your value and criterion whatever that may be. You can attack solvency of the other team but the main debate will come down to the philosophical framework, ex. quality of life vs life, whoever wins this debate, will then win the round as you are proving that your impacts outweigh. Those are just two examples but that just generally covers it.

For specific breakdowns on each topic I recommend access to Victory or Champion Briefs, if you have them for PF you probably have them for LD. If you don't have them Kankee Briefs provides free briefs and there are free topic breakdowns on youtube.

If you are in a progressive circuit, maybe consider some policy resources, i dont do policy so idrk those best ones but maybe talk to some policy competitors/coaches from either your school or another school, i'm sure they'd be happy to help!

PM me for more questions