There is an updated pull request by oreo639 against master on the void-packages repository

https://github.com/oreo639/void-packages xdp
https://github.com/void-linux/void-packages/pull/39518

xdg-desktop-portal: update to 1.15.0.
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#### Testing the changes
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A patch file from https://github.com/void-linux/void-packages/pull/39518.patch is attached