So basically ostree deploy fails if you have an existing populated ESP (EFI System Partition), so you’ll have to partition manually atm (in my case, I just made another ESP on the same disk). Other than that, I haven’t run into any problems with Win11 + Fedora on the same disk, mostly because I don’t boot into windows.
Here’s the docs on manual partitioning: docs.fedoraproject.org/en-US/…/installation/#manu…
It’s definitely a pain. One of many papercuts you’ll find with an “emerging” desktop edition on a distro already known to push new stuff before the Linux ecosystem is ready.
Just be sure to make a backup of your windows data in a separate disk, keep boot drives for normal fedora (in case this ends up being too difficult), windows (in case you give up), and Fedora Kinoite (because duh), and ffs, don’t trust ChatGPT with your sensitive data on your main PC :)