The pic above is from Imgur. I always “copy link” with my iPhone. Imgur users shouldn’t have trouble if they just want to post an image.
Is it just me or did very recently the "Media" icon that used to be next to the "Image" icon disappear? Its gone when viewing the forums on both Chrome on my Android phone and Edge on my Windows Tablet. That tool was the only way to post pictures from the Imgur app (could get the image link if posting from a browser), or to post pictures from Instagram.