Hi:) Thanks for experimenting already with the new beta^^
Im currently still writing the beta14 release notes they should appear any minute here:https://discuss.neos.io/t/neos-9-beta-14-release/6648/1
Regarding your ContentCollection i can say:
A special cases is fetching the path to render a content collection which can be simplified:
content = Neos.Neos:ContentCollection {
- nodePath = ${q(site).children('footer').property('_path')}
+ @context.node = ${q(site).children('footer').get(0)}
}
Is it now possible to remove the old asset usage table?
yes 
Regarding your missing S in
Migrations /ContentRepository
is there anything we can fix with our documentation?
However, the whole beta14 feels to be much more responsive. Thank you for your hard work.
thank you so much we are glad to hear that!!!