I had made the same question here: How to : Backup Yunohost server on Borgbase with Borgbackup - #44 by ghose
TL;DR: it depends how often your data changes and how sensible are that data for YOU or your ynh users. So, there’s not a correct answer or a better strategy. The more the better, one could say, but one needs to balance security vs. disk space, network use (if remote), etc.
@ljf thank you, so that’s the file that actually has to be edited (in hooks.d directory) and NOT the one at /apps/borg/conf?