I’ve been using snaps for a few years now and while they still could use some improvements, the snaps I’m currently using seem to be fairly indistinguishable from deb-based packaging thanks to bug fixes they have done over the years. I think the idea of containerized applications is a good one, I think it actually can be safer. Performance is also fine for me with snap applications even like Firefox snap startup speed, although I’m using an R9 5900x and Gen 4 M2 NVMe SSD so maybe that’s why, or maybe they really have improved the snap software and it is just as fast now for the most part.