This seems to be produced by TAG [1]. --Co↑co↓co↓ (talk) 14:17, 26 April 2022 (UTC)
Seems like a good indication, though I believe it's not enough evidence to confirm that it is actually him base on just that one (unless it's outright stating it like Akhuta's Project B- reveal). --ささき (talk) 26 April 2022 (UTC)