Netgate XG3100 vs. XG5100 Vlan

Netgate XG3100 vs. XG5100. regarding vlan default pre configured on 3100 usage. Experience configure vlan and use default. Difficult to set up the internal vlan on 3100? Is it stabile and and working as expected without much issues?

Is it in general better to use XG5100 with external unify managed switch? Regarding stability and performance in download and upload speed? Stability is most important for me. Upload and download speed is interesting too of course.

Is the configuration of vlan easier on 3100 or 5100?

It’s easier on the 5100 as it does not have the switched ports, only direct connections.