Just got an email from Degiro, they will be offering now also GBP and USD accounts in addition to EUR only as of now. This means you can hold multiple currencies under one brokerage account, without the need of converting.
Very interesting and a great move, especting s similar one on Trading212 now!
Nope, at least not for degiro in EU. Or maybe they only allowed once currency at a time. Now they sent an email saying we can have/hold multiple currencies in individual accounts soon.