Same here. Also, there are no mentions of template changes in the main audit.

Could you please share steps to reproduce?
I have tried but failed to reproduce this scenario.

For admin user, are you able to see any entry under audit page?

Yes, there are entries but not for changes in templates.
Note this is an installation upgraded from 1.19. It could be that it happened in 1.19 but just was not observed.

Radosław Piliszek wrote:

Yes, there are entries but not for changes in templates.
Note this is an installation upgraded from 1.19. It could be that it happened in 1.19 but just was not observed.

Thank you for providing additional details. It would be great help if you share your observations on below points:

1. What you see under audits page by changing taxonomy scope to "Any organization" & "Any location". Any records related to template changes?
2. If yes, that means template changes are getting recorded under audit.
could you please confirm that those records contains your previously selected organization under Affected Organizations and location
under affected locations.
3. If not then please confirm that whether audit records related to template changes are present in database itself or not?
4. Are you looking at old audit records? or audit record won't get created when new changes in templates?

It might be possibility that selected taxanomy was not associated with template when audits data created for that template.
In short, selected taxonomy are not there under affected Organizations/locations of audit records for which you are clicking to see "Show diff".

Radosław Piliszek wrote:

1, 2. Where do I change this 'taxonomy'? See the attached screenshot "where.png".
3, 4. Records seem to get created but not displayed. See the attached screenshot "missing.png" and below:

[...]

1. Could you please confirm that taxonomies i.e. Organization & Location are disabled on your setup.
Or it could be possible - user that you are using is limited to only one taxonomy i.e Organization/location.

2. Any other user mostly check with admin whether able to see changes from template?

1. I have no mention of taxonomies anywhere in the UI.
2. This is the admin user that made the changes as well.

Turning on locations and organizations fixed the problem immediately.
It works just fine now with Any/Any filter.
Thank you.

As a side note, I did not see that notification mentioned in the link you posted.
I skimmed over release notes and ignored this particular deprecation.
I suggest highlighting this fact more.