reading all the comments in the forum about ros3 and accordingly to our experience, I would suggest you to implement ros 2.9 on RB333 (and newer hardware such as RB600). At the moment the ros3 is unusable on (accordingly to our experience):
- wireless is not working, very unstable
- OSPF is not working as expected, sometimes the routing tables are not updated correctly
- PPPoE does not work at all (we opened a ticket in rc10, partially solved in rc11 but it looks like the problem was not totally solved)
Considering that we use mainly these 3 features, it would be helpful if you implement quickly a 2.9 version in order to use RB333/RB600 otherwise I guess almost everybody will try to find some hardware where to run ros 2.9.