Yes. It says "WWII" right there in the title. Modern aircraft carriers are..well, modern.
No, even in comparison to the times. The Casablanca-class escort carrier were 8,200 tons and could go 19 knots compared to the Essex-class carriers at 30,800 tons and 33 knots. the US made 122 of the slow, small carriers, only 24 of the bigger ones (with others in between, and then one bigger, i.e. Midway, which never saw service in the war)
“Only 24” is a funny framing.
Relative to 151 it's "only 24", OP is really not diminishing the significance of that accomplishment, but defining it more clearly.
And massed escort carriers was something that would spoil your day.
> not full-sized modern aircraft carriers.
17 "full-size modern" Essex class fleet carriers, assuming you mean 'modern' by contemporary standards.