how do you save other ppl’s albums, like maybe following it or..?

yup, just follow it

Yeah there is a like button and after you like it you can see the album in your favorites (on your homepage)

U can like the album to save it in your "my favourite".....
And u can also add the other people albums in your list...

This is where your liked album will appear :">
https://www.mangago.me/read-manga/mangago_how_to_guide/uu/br_chapter-6837/pg-28/

thanks for letting me know~ (=ﾟωﾟ)ﾉ