Kubernetes is a proper noun, and thus always to be capitalized in English, while the "&" is a ligature of the Latin "et", the word for "and". Not sure why that would be jarring, it's all fine and correct English.
I wasn’t talking about Kubernetes being capitalised. I know that’s a proper noun and deserves capitalisation. I didn’t intend to confuse on this point.
Although & means “and” they are generally used differently. & is used in places like company names where it’s part of a noun (e.g. B&Q, Smith & Wesson). “And” joins parts of a sentence. I find it jarring to use & because a) it looks like a punctuation mark and I naturally pause when reading, b) I expect to have read a noun, not a join in a sentence, and it takes some cognitive effort to re-parse the sentence using & in a way I didn’t first expect. Reading, especially quickly, relies a lot on expectation and pattern matching and I find this disrupts it. If you don’t, good for you.
Obviously in informal speech people write whatever they want and it’s true that language evolves over time. But I’d argue that using & instead of and isn’t “correct”, at least by current standards — if it was we’d see this used in newspapers, books, and so on.
