Does CE get new functions first?

Is it so that the CE version get the newest functions first and then you 'll apply them to the PRO version?
CE version works like a release candidate?

It’s hard to say I guess the PRO comming from CE, but there are functions which are only on PRO and I saw some functions on PRO before the CE.

Ok, I do understand why Pro are costing money but as I just want to use opensource programs the Pro function are out of the picture for me, but I’m completely happy with CE version and Seafile are the best application for it’s purpes to sync files.
Nextcloud has just made issues for me, files not syncing and files disapering etc.