Dear Paul,thnx a lot.
Before I answer u, I have an another "task" for you: I asked a thousand times joomshaper team, why I dont receive email notifications (new forum messages) any more. Every time I expect new message in forum like yours; i have to go to website and check. this is so bad! But for half a year no answer.
also this prob I fear other JS teamsmeber cant help me (except Pavel): (just in case you find time) https://www.joomshaper.com/forum/question/19770
https://www.joomshaper.com/forum/question/19768
OK no to your question:
I found something here: https://easyrechtssicher.de/recaptcha-dsgvo/
„Website-Betreiber sollten unbedingt Alternativen prüfen. Wird dennoch Google reCAPTCHA eingebunden, muss sich der Verantwortliche im Klaren sein, dass er den rechtmäßigen Einsatz gem. Art. 5 Abs. 1, 2 DS-GVO nachweisen können muss. Wer nicht darlegen kann, wie Google die Nutzerdaten verarbeitet, kann den Nutzer nicht transparent informieren und den rechtmäßigen Einsatz nicht nachweisen.“
That means, as google does not tell exactly what they do with the datas, we are not allowed to use g recaptcha or rather a judge in Germany said we should try to avoid it and look for alternatives because of the reason above: we cannot explain users what exactly happens with their datas (acording Art. 5 Abs. 1, 2 DS-GVO). But this we are obliged to do!