hook_install() may not work as intended, if modules installed in bulk

Here is a list of commits for ModuleInstaller since 11.1.8.

* 4837c52b Issue #3497105 by quietone, borisson_: Fix LineLength for inline comments
* 101e0606 Issue #3496558 by alexpott, godotislate: Install entity definitions for all modules in batch install before simple config
* 6e7715a8 Issue #3492282 by nicxvan, longwave, catch: Refactor away ModuleInstaller::invokeAll()
* 59ce5ede Issue #3494212 by godotislate, alexpott, larowlan: Modules that provide fields for entities of other modules can't be installed
* 57583222 Issue #3487154 by quietone, daffie, smustgrave: Fix Drupal.Commenting.FunctionComment.MissingReturnComment in core/lib/Drupal/Core/A-E
* 58be5f12 Issue #3492235 by catch, longwave, mikelutz: Default container_rebuild_required to FALSE
* 16967de8 Issue #3492705 by catch, nicxvan, mikelutz, longwave: Install modules with container_rebuild_true set by themselves
* f8090e61 Issue #3416522 by catch, alexpott, longwave, phenaproxima, nicxvan, wim leers, smustgrave, larowlan, berdir, godotislate, dww: Add the ability to install multiple modules and only do a single container rebuild to ModuleInstaller
* eab46c49 Issue #3486995 by nicxvan: Clean up how ModuleInstaller invokes hooks around installing other modules
* 76323d65 Issue #3490296 by nicxvan: Mark hook_install_tasks and hook_install_tasks_alter as procedural only
* 2c9e1fa9 Issue #3486462 by nicxvan: Support #Hook for several hooks called by ModuleInstaller

I'm wondering if it's worth considering a new hook: hook_post_install_optional

https://git.drupalcode.org/project/drupal/-/blob/11.x/core/lib/Drupal/Co...

I think this type of config was never really meant to be handled in hook install but worked.

I think adding a new hook might give a place to interact with this config safely.

I think this type of config was never really meant to be handled in hook install but worked.

I don't think the creators of this hook had any preference whether or not people use it to alter configuration from config/optional from another module.

I'm wondering if it's worth considering a new hook: hook_post_install_optional

To me it seems like a clear regression.
We should fix core, rather than asking people to change their code.