POE 2 Guild stash crossplay, player access

Hi, I'm thinking of making a guild for me and a couple of mates who play POE 2. However I've seen that MTX between platforms for the same user is "iffy"... if I try to access stash tabs bought on pc, from a ps5 character (same user, different platgorms sub account) the tabs aren't access able. Correct me if I'm wrong.

So from ^^^

If I, guild creator (pc) buy a bunch of stash tabs and label a through z with affinities etc. Will my mates on ps5, others on xbox(please clarify if either will or won't) in the guild be able to access the tabs.

last thing cause I saw that's it's because ps5 and gg couldn't come to an agreement.

If my mates and I can use the stash between platforms, will the donated MXT from guild be usable across guild admin on any platform