although I say; although one might say~
Says that although something can be described in a certain way, the reality is different or less impressive.
Use といっても to acknowledge a label or description, then immediately qualify it by saying the actual situation is not quite that extreme. It's like saying 'that said' or 'though I say that' in English. The first part is often a word or phrase that might overstate things, and the second part explains the nuance.
This pattern is common in spoken and written Japanese. It is neutral in formality but appears frequently in conversation as a natural way to correct expectations. You can use it with nouns, adjectives, or verbs, but the key is that the first part is a full statement (or a noun + だ) that you then soften.