The current default "Homepage" value is "All". That makes sense for users with zero subscribed magazines, so they see something.

But for users with one or more subscribed magazines, the default value for "Homepage" needs to be "Subscriptions".

That's partially just because subscriptions mean little if the default frontpage ignores them. But there's a more important reason than that.

The current situation is that posts in m/Conservative are heavily downvoted, and barely upvoted. (Whatever your politics may be, consider if this was happening to you.) As more ex-redditors join, this problem is likely to worsen.

Eventually moderators need better controls, to say things like "Only members can vote", etc.

But for now, a very easy fix is to change the default value of "Homepage" to be "Subscriptions". Of course, "All" should still be a selectable option for those who prefer it.