I don't fully understand this:
Bridge VLAN Filtering since RouterOS v6.41 provides VLAN aware Layer2 forwarding and VLAN tag modifications within the bridge. This set of features makes bridge operation more like a traditional Ethernet switch and allows to overcome Spanning Tree compatibility issues compared to the configuration when VLAN interfaces are bridged.
What means that(?):
makes bridge operation more like a traditional Ethernet switch
How it exacly works without enabling VLAN Filtering in bridge?