Old news, it has been legal tender for a very long time. The president of El Salvador even did a deal with a crypto exchange to give every citizen like $5 of crypto each a few years ago I recall.
I believe that the El Salvador law defined Bitcoin as legal tender June 7, 2021 with an effective date three months after the passage of the law on September 7, 2021.
There were some screw ups with the airdrop of bitcoin to Salvadorean citizens (and yes it was bitcoin not crypto.. fuck crypto and shitcoins, El Salvador passed a law to make bitcoin legal tender, not shitcoins), but right around the same time that bitcoin became legal tender. In order to receive the $30 equivalent airdrop, the Salvadorean needed to download and register the Chivo app, and so there were some problems with how the payments were made including some ways that people ended up claiming $30 that was supposed to be the airdrop of other citizens. The intention may well have had been good, but the roll out of the $30 airdrop had a lot of problems.