GetUserGroups IFP method does not work with Application typed domains

[ondrejv2]

My setup works perfectly with POSIX typed domains, i.e. I can query user groups via the GetUserGroups Infopipe method just fine.
However, if I add:

[domain/mydomain]
...
domain_type = application

it stops working. It works for some users, hangs for others.
I can definitely not query users using format <samaccountname>@<REALM> (using AD backend). But if I use UserPrincipalName, it also does not work.

Is domain_type = application still supported?

[alexey-tikhonov]

Is domain_type = application still supported?

I didn't see it used in a wild for quite some time if ever.