Wow, EasyJet Plus has an AMAZING system for entering your phone number prefix.
(It's alphabetical by country.)
I just yesterday encountered this with Lufthansa as well. At least they had the country names in braces. But you cannot press e.g G on the keyboard to swtich to the number.
And as always: Will you find Germany under G for German or under D for Deutschland?
https://ohai.social/@evilrooster@wandering.shop/110000308313291375