I actually think Georgia is lowkey good now. They suck at Science and Cultural victory but I have found them surprisingly competent when going for Dip. Dplomatic victory is excellent for defensive civs because grievances reduce your favour per turn, while defending increases your relationships, making it easier to ally with everyone or join emergencies. As for Georgia's special bonuses, I don't even bother with campuses anymore, REX'ing everywhere + Eureka micro makes me not fall behind anyway I just build Holy Sites and use the religious units from the Holy Sites to convert City states for easy suzerainity. I build Com Hubs and accumulate gold so I can give disaster aid or levy troops if needed. I build walls everwhere to defend myself against trigger happy AIs. In a pinch, I use my gold or faith to buy the units I need. Georgia's religious game isn't too bad either since you need Holy sites anyway to take advantage of Tamar's envoy bonus. It's an easy transition should you get voteblocked in the congress. A late domination victory is also plausible if you're swimming in faith/turn because of the Grandmaster's Chapel. Obviously this isn't viable on the highest difficulties, but it's perfectly feasable on King or even Emperor, which I think are the difficulties Civ6 should be played at tbh.