The GUI page is a bit out of date imo, or I'm not sure how does the selection work because there are countles GUI options nowadays. Anyways some of the best options are not even mentioned like
Amused me the first time I ran En Croissant, it lets you download existing chess databases and one of those (Caissabase) was my project from years ago :).
I don't play Chess much any more but others have taken up the Chess DB mantle (with slightly different criteria).
I do find it ironic that a project I did in a couple of days for myself and chucked online in case it was useful is still kicking around though.
If you like En Croissant there is a nice fork called Pawn Appetit that does all the same things and adds some other QoL bits and bobs.
Nocheto https://nocheto.sallyx.org/ (this my favorite)
ChessMD https://chessmd.org/
PyChess https://pychess.github.io/about/