The policy.yaml documented here differs from what is generated with 'tox -e genpolicy':
https://docs.openstack.org/placement/latest/configuration/sample-policy.html

The version on the web has all policy commented out. This feels like it is not a package issue at this point.

Here is the diff: https://paste.ubuntu.com/p/BVPMzMNwkJ/

Pasting the diff here as well (formatting may not be great):

--- /tmp/policy.yaml	2022-08-29 16:54:11.582341611 +0000
+++ /etc/placement/policy.yaml	2021-10-07 15:21:07.000000000 +0000
@@ -16,16 +16,7 @@
 # Placement API policies are introducing new default roles with
 # scope_type capabilities. Old policies are deprecated and silently
 # going to be ignored in the placement 6.0.0 (Xena) release.
-# WARNING: A rule name change has been identified.
-#          This may be an artifact of new rules being
-#          included which require legacy fallback
-#          rules to ensure proper policy behavior.
-#          Alternatively, this may just be an alias.
-#          Please evaluate on a case by case basis
-#          keeping in mind the format for aliased
-#          rules is:
-#          "old_rule_name": "new_rule_name".
-# "rule:admin_api": "rule:system_admin_api"
+"rule:admin_api": "rule:system_admin_api"
 
 # Default rule for System level read only APIs.
 #"system_reader_api": "role:reader and system_scope:all"
@@ -36,16 +27,7 @@
 # Placement API policies are introducing new default roles with
 # scope_type capabilities. Old policies are deprecated and silently
 # going to be ignored in the placement 6.0.0 (Xena) release.
-# WARNING: A rule name change has been identified.
-#          This may be an artifact of new rules being
-#          included which require legacy fallback
-#          rules to ensure proper policy behavior.
-#          Alternatively, this may just be an alias.
-#          Please evaluate on a case by case basis
-#          keeping in mind the format for aliased
-#          rules is:
-#          "old_rule_name": "new_rule_name".
-# "rule:admin_api": "rule:system_reader_api"
+"rule:admin_api": "rule:system_reader_api"
 
 # Default rule for Project level read only APIs.
 #"project_reader_api": "role:reader and project_id:%(project_id)s"
@@ -56,16 +38,7 @@
 # Placement API policies are introducing new default roles with
 # scope_type capabilities. Old policies are deprecated and silently
 # going to be ignored in the placement 6.0.0 (Xena) release.
-# WARNING: A rule name change has been identified.
-#          This may be an artifact of new rules being
-#          included which require legacy fallback
-#          rules to ensure proper policy behavior.
-#          Alternatively, this may just be an alias.
-#          Please evaluate on a case by case basis
-#          keeping in mind the format for aliased
-#          rules is:
-#          "old_rule_name": "new_rule_name".
-# "rule:admin_api": "rule:project_reader_api"
+"rule:admin_api": "rule:project_reader_api"
 
 # Default rule for System+Project read only APIs.
 #"system_or_project_reader": "rule:system_reader_api or rule:project_reader_api"
@@ -77,16 +50,7 @@
 # Placement API policies are introducing new default roles with
 # scope_type capabilities. Old policies are deprecated and silently
 # going to be ignored in the placement 6.0.0 (Xena) release.
-# WARNING: A rule name change has been identified.
-#          This may be an artifact of new rules being
-#          included which require legacy fallback
-#          rules to ensure proper policy behavior.
-#          Alternatively, this may just be an alias.
-#          Please evaluate on a case by case basis
-#          keeping in mind the format for aliased
-#          rules is:
-#          "old_rule_name": "new_rule_name".
-# "rule:admin_api": "rule:system_or_project_reader"
+"rule:admin_api": "rule:system_or_project_reader"
 
 # List resource providers.
 # GET  /resource_providers
@@ -254,3 +218,4 @@
 # POST  /reshaper
 # Intended scope(s): system
 #"placement:reshaper:reshape": "rule:system_admin_api"
+