Is it worth playing as a drow race?
Depends ...
If you expect unique experience, while playing proper Drow and picking evil choices ... then yes, definietly!
If you wish to play as "exceptionaly good step cousin of Drizzt Do'Urden" ... and expect everyone to notice what you are, being distrustfull, and turn away from you ... rather than just "i usualy dont like your kind, but you seem allright" followed by the same generic dialogue as any other Elf would have ... then nope, since the second one is what you get. :-/
Do they have disadvantages in sunlight in Baldur's Gate 3 as in D&D?
Not at the moment in EA, no.