In the installer one section is storage. There one can choose which drives to use and
choose between Automatic and Customize. The former is the default and I always
choose the Customize. That gets me to dialog, where I can remove and add filesystems
as I please. That has also “create automatically” that creates default filesystems, but
one can modify the set before choosing “Done”. One even gets a summary of what will
be done on install, with option to reject and change choices.
The default does indeed use two “standard” partitions for /boot and /boot/efi,
and one VG, where LVs for /, /home, and swap are. In the Custom one can
switch between standard, LVM (and “thin LVM”?).
I don’t use automatic updating, but I’d guess there is a service that can run “dnf up”
on schedule and does not reboot. Some packages, like kernel and glibc, do need reboot
to get into use.
A core idea of Enterprise Linux is that features are not removed. That you can set up a service and it can run up to decade.
The RL10 will not be a “new version”. It will be a distinct distro. Yes, there are distros that allow conversion to similar distros, e.g. Fedora N → Fedora N+1, and Ubuntu to Ubuntu, but Enterprise Linux has not been such. There might become third-party tools for in-place conversion, but Rocky has no support for them. (Cannot predict future, obviously.)
The SELinux does log events in permissive mode that would have been blocked in restrictive mode.
One can see summary of those events with: audit2why < /var/log/audit/audit.log