I have only seen it from untrustworthy sources

I know these were real, but older

I can't speak for this image, but I recall Iran, Hamas and Lebanese people paid their respects to Bushnell; using google's AI I found these articles:

Hamas: https://www.workers.org/2024/02/77176/

Iran: The Tehran times website seems to be down, but there's this jpost article condemning it as exploitation: https://www.jpost.com/middle-east/iran-news/article-789129

A Lebanese article about when the West bank also renamed a street in his honor: https://en.al-akhbar.com/news/the-limit-of-what-a-soul-can-bear--remembering-aaron-bushnel

Also an article from a Hezbollah website (Al-Manar TV) about him: https://en-archive.almanar.com.lb/tag/aaron-bushnell

Bushnell gave their life to oppose genocide so this isn't surprising, people in the global South have a lot of solidarity with anyone who's against oppressors (it's the reason why Iran back in the 70's freed black hostages (except for one from the military) and kept the white ones).