Idk If voyager is still PWA, but they also autoplay on Liftoff,… on Connect it shows full image at least and you can tap to play it, Summit also shows the image with a play arrow. So it can be done… I have no clue how… But I had been trying like 6 lemmy apps before Sync and handling of previews, thumbnails, YT, links etc is a total mixed bag… There is at least one app that does each of the previews well, but there is no one app that does them all well 😂