work is work, personal device is personal device. What you use for work doesn't matter since you either should be provided with a work device or at least be able to install apps on separate account God, mental gymnastics some people perform to justify ios limitations... Like WE HAVE THIS ALREADY, on macos, windows, android... and insta/wh/fb apps are still on google play... and you can still access them in the browser. Not to say that if apple makes the process to install these sideloaded apps a bit harder (like multiple warnings 'DANGER' and confirmations, the possibility apps will migrate fully outside appstore tends to zero