The 2242 also fits in the deck. And the cooling plate keeps it in place.

https://www.amazon.com/PM991-by_Samsung-512GB-Solid-State/dp/B08LZYV2XY/ref=mp_s_a_1_37?crid=1A8JZ1W1GQO1Q&keywords=nvme+512gb&qid=1677275774&refinements=p_36%3A1253504011%2Cp_n_feature_fourteen_browse-bin%3A41942660011&rnid=41941858011&s=pc&sprefix=nvme+512gb%2Caps%2C282&sr=1-37

Edit: I've been running a 1TB 2242 in my deck since July without any issues.