Thanks - but after I wrote my comment, I did check Gigabyte's spec page, and saw that the socket was there, but didn't update my comment. I should have written that I won't be spending the sort of money being requested at present (£80 ?) on a chip I neither need nor want. I wondered what the chips cost before the W11 requirements became common knowledge, and found one advert that showed it used to be ~£12 when available. As I don't intend to encrypt my drives, I can see no value in the TPM, so will be sticking with W10 (if MS sticks to its current plan).
If anyone cares to point me at something which explains why I should get a TPM chip, I would be grateful. Most of what I have seen reads like advertising hogwash.