Several kernel testers who experienced the issues I elaborated have reported that the new kernel 6.14.3 solves the issues for them. This includes me: the issues that I could reproduce always (sleep freeze, and wifi freeze after it) have disappeared. I hope this applies also to the other issues. We’ll see. But that the reproducible freeze has disappeared gives hope that the others did too 
If you want, you can test the new kernel once it has entered testing (it is atm one step before the official testing stage), but since all automated tests have been passed and since some people already tested it in practice, I presume that the following page will soon enter testing stage, and thus show a dnf command (beginning with sudo dnf upgrade --refresh --advisory= and then an attribute to the advisory) that has a yellow background at the top of the page. Once that showed up, you can use that command to get the new kernel that hopefully solves the issue for everybody. Keep in mind that the kernel is then still in testing, and although a lot of testing has already been done when the “public testing” starts and that it is highly unlikely that major issues show up at this time, it is still testing until pushed to stable (which means to end up in your normal updates). So if you feel unsure, you might want to wait for it to be pushed to stable. Keep also in mind that this dnf command is a one-time-command: this means, it does NOT enable testing in general or so, it just installs that one update from testing, and then goes ahead as usual with stable only (including future kernels).
Link: FEDORA-2025-0341e0131a — bugfix update for kernel and kernel-headers — Fedora Updates System
Feel free to let us know if that solves your issue too.
Supplement: the kernel is now in official testing. It can be installed already before it is pushed to the stable updates with sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2025-0341e0131a → as mentioned above, keep in mind that it is testing! So far tests are promising, and it might be pushed to stable soon anyway.