All 3 sound like symptoms of some sort of firmware problem. If you’re able to reproduce you should report it to framework.
I’m having the same problem for my Framework 13" that was delivered in Sep 2024.
Framework Laptop 13 DIY Edition (AMD Ryzen™ 7040 Series)
System: AMD Ryzen™ 5 7640U - 2.8k Display
Depending on the apps I use, I’m having daily complete lockups on Windows 11 with latest BIOS and drivers when using some graphics intensive apps including Microsoft Powerpoint, Adobe Photoshop. The lockups mostly if not always seem to happen when doing sudden intensive tasks but not during sustained heavy tasks, specifically saving a (large) file or copy pasting (large pictures) seem to trigger a lockup.
System freezes completely without any chance to recover, display stays on. After a minute or so, the system will automatically reboot. The system event log doesn’t contain any entries and there is no BSOD to be seen.
I’ve already removed the HDMI extension and disabled the PCIe idle setting in the BIOS to make sure this is not related to either of those.