I spent a few minutes hunting for an account export function on Komoot without finding one. The heck with it, their privacy officer email is datenschutzbeauftragter@komoot.de - the email to send is a GDPR Data Subject Request.
Komoot is/was a German company and their acquirer, serial enshittifier Bending Spoons is Italian. Goes to show that it's not sufficient to just be European.