No-Mark Without Mangle in Queue Tree - MikroTik Script RouterOS
Only with No-Mark without mangle in the Queue Tree, it quite lightens the burden on a good router to use for hotspots that don't want to be complicated to dimangle, this trick can also be used to filter out leaky dimangle packets.

/queue tree
add max-limit=10M name=2.Upload packet-mark=no-mark parent=E1-WAN queue= default
add max-limit=10M name=3.Download packet-mark=no-mark parent=E4-LAN queue=default
add max-limit=20M name="1.Total No-mark" packet-mark=no-mark parent=global queue=default