Should I claim 100 percent of my parents 1095a if it gives us both bigger refunds, I’m filing separate but was on their insurance. Or does the percent depend on income?

When my parents claim their tax credit (from1095a) they owe, when I claim it on mines I get a bigger refund and so do they.  I’ve seen answers about having to do percentages of the tax credit between different tax payers on the insurance. So could I enter the whole tax credit on my end and my parents enter zero on theirs ? Or do you have to do percentages by the income you provided to marketplace ?