I use starlink and find it fast and reliable - far more reliable than any cabled connection I ever had elsewhere, and faster than the fibre that’s available around me, which is contended to hell and back. Yes, it’s gigabit in theory, but in practice you get 20Mb/s, and any time there’s a power outage, which is often, it’s down.
A lot of countries still uses poles for cables, and fiber. It's always super weird to see when you're from an area that buries everything except high voltage powerlines.
For areas with frequent earthquakes I think poles are preferred because it's easier to fix broken cables.
From the part of the Europe where I am from power lines are rarely buried, however fiber is universally buried so I haven’t even considered it could not be.
