So fist I put acpi_osi=Linux in
GRUB_CMDLINE_LINUX_DEFAULT and it did not work but now I put it into GRUB_CMDLINE_LINUX
seems to work even if I start firefox first.
Thank you @tkn
PS.
- there is no bios update newer than A26 for m4800.
- dell support website says that win 11 is not supported on m4800 but for adobe reader, digiral signature and edge it seems to work (slower than ubuntu anyway)