If we measure it in /64s, yeah, it's definitely more than you could ever use.

However, IPv6 space has to be measured in /48s, and IPv4 in /24s, as those are the smallest possible BGP announcable blocks.

With IPv6 there's also an unwritten rule that RIRs will only assign blocks ending on a nibble boundary (with the exception of RIPE and their /29s that they expand by one bit every time you run out).

So a /44 is on the second smallest nibble boundary, making it the second smallest allocation possible.