I have found that more specific arguments does return output:
root@debian12:~# tc filter show
root@debian12:~# tc filter show dev eth2 root
filter parent ffff: protocol all pref 49152 matchall chain 0
filter parent ffff: protocol all pref 49152 matchall chain 0 handle 0x1
not_in_hw
action order 1: mirred (Egress Redirect to device ifb4eth2) stolen
index 2 ref 1 bind 1
However like "tc qdisc show" you would expect "tc filter show" to also
result in all filter rules across interfaces being returned.
