Yes, I’m experiencing the exact same issue as well. If this were only happening on my PC, I would have assumed it was just my own problem, so I’m relieved to see someone else with the same symptoms.
I tested this with MSI Afterburner enabled, and in-game, when FG is active, the frametime shows around 0.5–0.7 ms. (It’s not the real frametime, but according to ChatGPT, Afterburner reports it this way when FG is enabled.) However, on the map screen before respawning, it jumps to around 15–17 ms, and it looks like FG gets disabled there. Then, when I respawn and FG turns back on, I get about 0.1–0.3 seconds of stuttering. The same thing happens in vehicles such as aircraft and tanks. When switching from third-person to first-person, or when zooming in with a scope in first-person, the frametime graph spikes from around 0.5 ms to 15 ms in Afterburner, causing a stutter before returning to normal. It doesn’t happen every single time, but it occurs intermittently—and not infrequently.
According to ChatGPT, this happens because FG adds generated frames and sometimes disrupts frame timing. I also saw the same frametime spikes and stuttering in a YouTuber’s gameplay video using FG. It seems the GPU load briefly spikes because it has to handle both rendered and generated frames. Other games don’t show this issue for me, so it looks like Battlefield 6 specifically needs some adjustments.
I’m not a native English speaker, so I wrote this using a translator. Please forgive me if anything sounds a bit unnatural.