Found this link which clearly explains what is involved later in 2022 when ETIAS comes into operation. Thought others may find it helpful.
ETIAS for British Citizens - ETIAS.COM
(For the avoidance of doubt....... This scheme has been in planning since 2016 and is NOTHING to do with Brexit. Two recent threads to which I have contributed - hopefully with helpful contributions - have been withdrawn by Jim because of futile rehashing of pointless Brexit debate postings.)
ETIAS for British Citizens - ETIAS.COM
(For the avoidance of doubt....... This scheme has been in planning since 2016 and is NOTHING to do with Brexit. Two recent threads to which I have contributed - hopefully with helpful contributions - have been withdrawn by Jim because of futile rehashing of pointless Brexit debate postings.)