Do you mean non samsung users, and do you mean via Quick Share?
If so, go to settings >connected devices >Quick Share. Go through each setting, ensuring it is set up accordingly.
If you mean iPhone users (non Android) then I don't believe Quick Share is compatible.
However, this link might be useful
https://www.reddit.com/r/GalaxyS24Ultra/comments/19c1scc/can_you_quick_share_from_samsung_galaxy_pho...