Yeah, sometimes the telcos have a self-service portal that gives you a new QR code. However, last time I needed it, my telcos service happily returned 500 so I was left without connectivity.
Also, eSIM backup transfers don't work between brands of Android phones (e.g. from Pixel to Samsung and back).
Also, eSIM backup transfers don't work between brands of Android phones (e.g. from Pixel to Samsung and back).