unless something changed recently, you need to do some questing on a lvl 50 to unlock them, so f2p nah, vets can if they unlock it on their main (not without gametime ofc).
Vets and linked Starter Edition (mostly from the Try WoW Start Edition Code handout during the Warcraft movie in theaters promotion) that had a level 50 complete the BFA questlines prior to the level 60 change with Shadowlands have access to any Allied Race they unlocked on retail.
With Shadowlands pre-Dragonflight patch (earlier) almost all previous unlock non-Allied/Pandaran races where unlocked on Starter Edition accounts, for Death Knight. Linked accounts with a retail of Shadowlands active once added Death Knight for the remaining races.
