Yes - card size is highly essential to:

Official Tournament Play: The size of the cards should be used to standard Pokemon TCG size. Cards that are not the correct size or poorly printed are inadmissible.

As far as I know, this is compatible with all sleeves and all binders as well, although not at the same time. Sleeve and Binder Compatibility As far as I can tell, it is compatible with all sleeves, all binders, but not both simultaneously.

For more, visit:https://sportsbyte.net/pokemon-card-size/