Low risk for stainless steel in normal use; abrasive scrubbing or wiping against the grain could affect appearance.
Why
The manufacturer explicitly designs this water-based degreaser for stainless steel, including brushed and polished stainless steel, and reports it removes grease and fingerprints without damaging the finish.
What to do
Spray on and wipe in the direction of the grain. For heavy buildup, soak briefly and use only a nylon scrubbing pad.
pH
Not stated
Relevant chemistry
Water-based, streak-free degreaser; mineral-oil-free. Surfactant classification is inferred from the cleaning/degreasing function; no specific ingredients or pH are stated.