They got to s10 in 2019 then switched to year numbers starting with s20 in 2020.Galaxy S25???
Didn't the Galaxy S3 come out just a few years ago? ... I'm old!!!!
Which is easy enough to remember, so the S22 came out in 2022 and the S25 came out in 2025.
Apple on the other hand have no reason or rhyme to their numbering, sometimes perforating their model numbers with an S like 4s/5s/6s/XS, and sometimes skipping numbers altogether like 2 & 9.
Their iphone X was actually their 11th generation and the current 16 is in the 18th generation. So 🤷♂️