でも means "even things aa, bb, cc', while など means "things aa, bb, cc etc.".
「じゃがいも・ナス・きゅうりなどは野菜です。」 (Potatoes, eggplants, cucumbers etc. are vegetables) (など = "etc.")
古いパソコンでも、人工知能が利用できる。(AI can be used even on old PCs) (でも = "even on")
Not quite sure how you got those two mixed up, but thinking of でも as of "even" is a safe bet. Well, sometimes it can actually function as a stronger も, for instance:
「イチゴ・ラズベリー・ブルーベリーなどはべりーです。」「ところで、スイカは？」「ああ、そうですね。実はスイカでもベリーですね。」("Strawberries, raspberries, blueberries etc. are berries." "By the way, what about watermelons?" "Ah, yeah, right. Actually, watermelons are also berries.")
Not sure how natural it sounds, but I've definitely heard this pattern used, even though for me personally that extra で feels redundant (since も on its own would do fine).
