Most telco and central gov. tech infra was actually working, unstable, but working during the first hours of the outage. I know some friends eventually lost connectivity in remote parts of the country though (for 2-3 hours at most).
For the average chilean: As long as you had 4G-5G equipment with working batteries, you had internet and access to essential gov services.
The infra is generally great, although lately new operators have pushed quality down as they push aggressive pricing and cost savings through dubious lobbying and corner cutting on reliability.
Nowadays some antennas go down right after a power outage because they don't have backup batteries. People also realised that they are quite pricey, so people melting copper lines moved to stealing batteries after the shift to optic fiber. To me this activity is straight out terrorism as it takes down critical infrastructure, I'm generally leftist, but ready to shoot these people on the spot if I actually had a gun.
For the average chilean: As long as you had 4G-5G equipment with working batteries, you had internet and access to essential gov services.