I wonder how much stands up to philosophical scrutiny, especially the idea of the collective unconscious. — Jack Cummins

This is a great question but also makes me wonder if you want to have your cake and eat it too. The collective unconsciousness is presented as both a phenomena and an idea. Jung is not interested in tricking people about it. It is either one or another.

Jung is interesting. The architectural side is at odds with the willingness to hear about individual suffering. He did both. Something about the experience led him to something very different from others.
But that to me seems like a retreat from explanation. There is no bon mot. You should be unhappy.

I don't have a clear idea about what constitutes the "psychological." It seems like it is not only a set of explanations but a method for putting other problems in a context. So, the comparison of philosophical with religious experience seems to assume an underlying something to which both relate. There are a number of disciplines that attempt to understand things in that way. I am asserting you are taking some kind of stance like that to view philosophy and religion from a distance far enough away to see them apart. My experience of these activities has not been something where the different qualities announced themselves as what they are by simply appearing.

Your question of how one might do the work of another led me to think there is viewpoint prior to either by which to compare them. Is that a psychological point of view? Asking that means I have not gotten as far as asking what the differences are. There must be many. But what is the background of comparison?

In your asking about the difference between philosophy and religion, I have difficulty with taking either as a given circumscribed set of activities that may or may not overlap. Is there a way to separate them that is not already a choice?
When you say: "I am wondering about the way in which philosophy provides an alternative way of finding explanations and meanings", it sounds like religion had this job we can distinguish beyond the confines of choosing it or not over philosophy.
I would like to hear more about this job. It sounds more important than deciding who should get it.