I think this will come down to whether Biden is reelected.
Given that Georgia has a steady history now (including in 2022 Senate) of drifting leftward with each election regardless of who is president, I don't see why Ossoff would lose to whatever fool the Republicans run in 2026. If a Republican is president then he's very likely to win reelection, almost to the point where I wouldn't expect Republicans to focus on it as heavily since North Carolina and Maine will be in extreme danger, along with possibly even Texas or Alaska.