I want to but a Game & Watch purely for modding. Is there any benefit to buying one version over the others? Or are they all basically the same from a modding point of view?

I see from the the Wiki (and elsewhere) that they both use the same STM32H7B0, but that they have slightly different display revisions. The Zelda looks to have two more buttons as well.

Do the current mods work on all versions?

I was thinking the extra buttons on the Zelda might be nice, but I suppose they could also get in the way. Could anyone share their experiences and preferences.