The fare basis code isn't visible in your post as text seems to be white (I can see it when I mouse-over post).

At any rate, yes, a G0FWZRU1 fare is refundable. The 'R' in the 6th position on AA domestic fare basis codes identifies it as a refundable fare. Domestic non-refundable fares will either have an 'S' or an 'N' in the 6th position of fare basis code.

Refundable fares will have this text in the penalties section of fare rules --



While non-refundable fares will say this in penalties section --