Please be aware that all the links in this thread are unofficial sites run by who knows who. Only go to an official EU site for info. This is the official site:
https://travel-europe.europa.eu/etias_en
Any official EU site has a domain ending with .eu - like .gov in the US.
When ESTA, the equivalent for Europeans coming to US started there were so many sites charging you an extra fee to send your I go there and such. I expect a million similar scams coming up when this comes online. That’s why it’s so important to use the official site. Also, you will get the most up to date info there.