Is an IR loader needed for the PS2 Example 4 (XLR line out)?

I don’t own a PS2 yet, but I’m thinking about purchasing one soon. One of my use cases is like example 4, and I’m wondering if not using a guitar cab and only utilizing the XLR line out, if I need to have some cab/IR loader. I might sometimes run into my audio interface/DAW, but some times I’ll need to run direct to PA/monitors.

Similar question, could I use a cab/IR loader this way to potentially provide more tonal options even if it’s not required?

Thanks

Just found this video below. Seems like the answer is that yes, you should use IR/cab sim with any of the line out options.

Mooer Radar is a cheap ir loader, works well.