entropyartstudio
Any app that you want to open links
For example: pipepipe plays youtube.com videos your friends send you.
hold your finger down pipepipe's icon > app info > open by default
Select "in the app."
Press: add a link > select youtube.com, youtu.be, etc
Any app that shouldn't open links.
(E.g. Instagram goes to iceraven)
Go to the app that is opening the link:
Instagram app info > open by default
There might be a "clear default preferences` button. Press it.
Select " open in browser"
repeat all of this for every profile you desire, private space included.
An app crashing is another issue and specific to that app.