Fitra, basically is just derived from fitr which means “fasting”. If I’m remembering right, in regards to zakat, it’s essentially something somebody does if they can’t make up their fast for Ramadan for whatever reason. Instead of redoing your fast at a later day/partaking in the fast in general (usually due to health) the way to make up that fast is to give to charity.

For my family, we usually just try to use spoilables whenever we can but give them to other family members or the Mosque when we have a surplus. For things like clothing, I’m not as in tuned as I’m not one to buy ew clothing much unless I need to. For unneeded ones we usually give them to thrift stores, good will, donation, or to someone we know who needs them.

It just seems like the natural thing to do in my opinion, so I’ve never really ascribed a moral or objective position to it. So I guess by that metric I’d call it “correct” but that’s from just my subjective perspective rather an a detailed analysis of practice.