I wouldn't expect interview invites for chemistry to come out just yet.
I made a total of two applications (once for 2022 entry and was rejected post-interview, then again for 2023 entry and was accepted) and the respective dates when I got my interview invites were November 23rd of the respective years, but given how much advance notice they like to give you and how late Michaelmas term started this year (it was 5 days late), I would guess it is more likely you will have interview invites / pre-interview rejections sent out on the 28th (or give or take a few working days).
If you have any questions about Oxford chemistry or St John's college (where I ended up after being given an open offer), please feel free to ask.