Bambu Lab P1S in PrusaSlicer

PrusaSlicer has no Bambu Lab P1S profile, and preslice cannot make one.

Does PrusaSlicer ship the P1S?

No. PrusaSlicer's bundles hold no Bambu Lab printer. Bambu Studio, OrcaSlicer and Creality Print each ship a P1S profile: 256 × 256 mm bed, 0.4 mm stainless steel nozzle.

Why not convert to PrusaSlicer anyway?

Any PrusaSlicer profile Convert picks is another printer's. Its G-code targets that printer, not your P1S, so a converted file does not help. Do not print it.

What should I use instead?

Open the file in OrcaSlicer, which keeps PrusaSlicer's layout: Bambu Studio to OrcaSlicer. Starting from a PrusaSlicer file, use PrusaSlicer to Bambu Studio. See what Convert cannot carry.