2c-chat Apps aren't exactly "installed" in a profile, they're installed globally on the phone and then made available to profiles that have "installed" them.
So, it's really up to you whether you want to first install apps in the owner profile then install apps in other profiles from there. Just keep in mind that this may lead to problems installing apps that have the same package name. For example, installing two apps but one from Google Play and another from F-Droid. They might be the same app, but they were signed by different entities, so the second app won't install.
After installation, running the same apps from different profiles will not cause any issues. That's part of the whole point of profiles: to have different spaces for different people or uses, for example: work vs personal use.