Where is "match sequence settings" in new Export window Premiere Pro 2023?

"Match Sequence" for exports only ever matched the raw sequence details, from the Sequence Settings ... framesize/rate and whether progressive or interlaced.

It never was designed to match bitrate, or even "notice" any clip's bitrate, as that was not a sequence item at all. That's an item per clip, yes, but not for the sequence.

For bitrate, we've always needed to choose an appropriate bitrate 'level' preset, like Adaptive Medium Bitrate, or set that manually. The results of the presets may be a bit different than before, as they may have tweaked the settings. You can check that by seeing what bitrates each preset brings up, compared to the same named preset in an earlier version.

But they are based on the same data from the sequence settings. Not clip data. I don't know how that could even be designed ... so you've got one clip that's at three times the bitrate of the next, does the app then jump the bitrate for that clip, drop it at the next edit point?

Neil

That has always been just framerate and framesize, never bitrate.

Bitrate varies per preset, such as adaptive high versus low, or ProRes LT versus HQ.

And down in the settings after your chosen preset, you can modify the codec settings further.

Neil