Amazon sells some expensive SS tool sets for keeping in your boat. Will the chromium (and ?? other metals) that are added make the tools significantly weaker that a normal tool? Wrenches bending?
That's all a marketing gimmick
Like Bronze/Brass tools exist for non sparking situations- SS tools exist for certain applications like in the chemical industry or others where corrosion of ferric contamination can cause process issues in things like in food service, medical, certain chemicals like nitrates etc.
Some industries and processes wont allow the plated tooling for fear of the plating being damaged and exposing the CS
There is no significant difference in performance that I have ever seen or heard about (other than the cost)
I have heard accounts where they fracture sometimes as a result of a greater hardness to tempering ratio common to SS in any mixture but that's with cheater bars and impact usage ( personally I see almost the same with regular CS tools)