You probably need to hit a share button and then there is usually an option for a link. If not, choosing message or email will throw a link in there. I haven’t used the Instagram app in years, but that’s usually how it goes.
If you don’t have the app installed, and aren’t logged in, there is about a 60/40 chance that the person on the other end will be able to see what is sent. And if it’s a video, they’ll miss the first bit of audio, because it defaults to muted, and it doesn’t let the user replay the video. They employs a lot of aggressive dark patterns to get people to create accounts, login, and use the app.
If you don’t have the app installed, and aren’t logged in, there is about a 60/40 chance that the person on the other end will be able to see what is sent. And if it’s a video, they’ll miss the first bit of audio, because it defaults to muted, and it doesn’t let the user replay the video. They employs a lot of aggressive dark patterns to get people to create accounts, login, and use the app.