The dupe target does care about items.
The dupe target asks, without restricting the scope to any one category of features:
Are there any ways you have used to mitigate this flaw?
This means the question is properly concerned with any game feature that solves the problem of Sunlight Sensitivity, and to quote the Dungeon Master's Guide:
Game features ...
I think we should leave it as a [house-rules] question
That might be surprising, because the ruling they made was also definitely an available official optional rule. But here's the thing: they didn't know that when coming up with their rule. In their universe, not apparently having read Tasha's yet (or at least that section of it), what they created was ...
It's a dupe, you want to Bounty
Both questions are asking how to mitigate sunlight sensitivity: that makes your question a duplicate.
The answers to the older one do fully include an aspect you are interested in. You'd like to see more than just that, so in these situations where you are asking the same thing but not getting the type or quality of answer you ...