You can still use a fw card for charging, and this to expand the number of ports. And apart from gaming or constant high performance use, you don’t need more than 60-100W. I checked with a testet, watching YouTube in 4k with the screen set high was around 60W.
Btw the fw16 really needs 48V240W, it’s just that doesn’t exist yet.
Personally I ordered without considering the charging at all, so even the 36V seems fine. I’m probably going to use it with my kb and mouse to share a single card.