For me, its "learnings" and "performant". We've had "lessons" and "fast"; what do those words not capture?

performant is more loaded than 'fast'

If you're not an English speaker, it's even more aggravating when speakers of your language replace common words with English ones to sound more sophisticated/corporate. So instead of using the native word for "knowledge", they'd use "know-how". (Of course using more common words like "knowledge" or "skill" are not good enough, you need something that sounds more sophisticated to the foreign ear, like "know-how".)