People El Salvador didn't get the $1200 checks that US citizens got from printing more USD, even though they both use USD in theory. The president tried to get a deal with the IMF, but they couldn't agree on the terms, so he decided to give a choice to the people between a safe but inflating currency and a volatile / experimental but deflating currency.
Luckily there are enough market makers in both countries that transferring USD and recieving USD through the Bitcoin / Lightning network is cheaper and faster than using the traditional banking infrastructure.
I have a girlfriend in Colombia, and in addition to the 10% remittance fee she always has to go to the city from her village (1 hour bus ride) just to get money. I wish I could just send her money through Lightning network (she has internet + iPhone, so installing an app is not a problem).