Boracay is not intended or equipped in any way for serious work. I barely hold there for a month. By the way, 4G is working mostly around so called Station 2 area. Stay in Station 1 or at the far southern end of Station 3 or on the eastern part of the island and chances are you wouldn’t get 4G.
“3G” here close to meaning “non-existing connection” - so if you don’t get 4G at any particular spot, you wouldn’t get any internet there at all.
Electricity shortages are also common - a few per week.
It’s a lovely island with nice beach sand, crystal turquoise water and fresh air, though. Just don’t assume that you would have stable (or fast) connection there.