Had a good search on this and can’t find anything up to date.
You can now have 2 hubs in one account and for ST own devices this has been working for me great.
However I’ve gone to add some Z-Wave devices today and I just can’t seem to add them through the new app on either hub? They add just fine on the old app but this seems to support the first hub.
Any ideas on how I could make the work?