I have GPON FTTH, as in I can see the fiber strand coming into my apartment. If I call providers and offer to buy beyond 1Gbps for ANY PRICE, even on enterprise plans, they can't do it.
The network is not technically capable of it.
The network is not technically capable of it.
GPON is 2.4/1.2 Gbps and it's shared with multiple users so it's incredibly unlikely that any part if the core infrastructure is limited to Gigabit. Only the CPE is.
You can deploy 2 Gbps service on GPON though the quality will be low-ish, or you can run multiple versions of xPON standards on a single fiber network and offer > 1 Gbps to users who you switch to XGPON2. Others stay with existing CPE and plans and GPON as if nothing changed.