My first time repotting an orchid I cut off a lot of viable roots. It can be hard to tell for a beginner, but usually they are fine unless they are complete mush. I’m still a beginner, but I feel like I’m finally getting the hang of it.. it took quite a few dead orchids though to learn... unfortunately.
Me too! I butchered most of mine when I repotted for the first time. Orchids have a reputation for being delicate, but I’ve found hybrid Phalaenopsis in particular can be very resilient. I’ve had Phals in worse shape recover and bloom within two years.