SQ and their silly-mousepointer-website says that they are QI: Qualified Intermediary (QI) | Swissquote
PF says that they are not, at least by saying that from an US ETF they pay 30% taxes.
So SQ is better than PF if you want to hold some VT in Switzerland apparently.
Am I right that if I have VT on PF I need to write to the IRS , which translates basically in “do not move/buy VT on PF”.
Note: this is for ppl like me that want to diversify Broker and apparently also funds.