Irfanview allows me to stitch images together in sizes that just weren't possible with 32gb. I can have a 50 gigapixel raw image open in irfanview, and it takes up 40gb ram. Still room to go higher.
Photoshop is a little snappier too, with more room to do stuff before having to rely on scratch disk. Helpful when manually seaming these gp shots together, and every little brush stroke is 4K sized
Stitching is a little faster too, but maybe that's because I'm working off the NVME drive now