Both @Kromka_z_maslem and @patrik-zitko logs contains a lot of
Got error -1 in can write: (105)No buffer space available
So far you both are first ones, where I see this error. So I would guess it is not a common problem, given the fact that CAN usage in Klipper is quite widespread nowadays.
Unfortunately I cannot contribute more than referring to the CAN Troubleshooting document as linked above.
You might also try to increase the queue length, e.g.:
allow-hotplug can0
iface can0 can static
bitrate 500000
up ifconfig $IFACE txqueuelen 2048
post-up /sbin/ip link set up $IFACE type can bitrate 500000