Two things to keep in mind:

I have had interactions with support in the past where “wait-a-second-it’s-a-long-nonsense-string” was good enough for them and they did NOT ask me to read it out.

I also had the interaction with a bank that asked me to read it out, and I was glad that my nonsense string was a list of 8 hyphenated words rather than a barfed up random string.

8henna-Such-Brain-Civil0-Grown5-modified8 is better than gpqmxsc5utowduc8fhqvntsXsgvMDzs0rclsiwzt