If you /give yourself an item with the death protection component and a use remainder component, the use remainder component will not be affected by the item disappearing after the death protection is triggered.
I am using this command to create a Netherite Sword with the death_protection component, as well as the use_remainder component set to return a normal netherite sword with no custom components:
/give @p netherite_sword[death_protection={},use_remainder={id:"minecraft:netherite_sword",count:1}] 1
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We are tracking this issue in MC-276619, so this ticket is being resolved and linked as a duplicate.
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