I recently switched from Authy to 1Password for 2FA, requiring me to set up every single website's 2FA from scratch, and I found that every website I use provides the text version of the code. It's hidden behind a "having a problem scanning the code?" link. I didn't need to take a single screenshot of a QR code; I was able to save the text version for them all. Next time I switch, it'll be easy.