Angle bracket/path param replacement

Trying to import an openapi 3.0 doc as a postman collection, but path params are imported as:
key=<value> which I am then unable to set via environment or global variables.
Is there any way to set these other than having to manually click and change the value? I am trying to use postman to do some automation so having to manually update these values isn’t an option for me – being able to specify values for the keys in the env file would be better. It works for variables in curly braces, but not params.
As far as openapi 3.0 works, I can specify example values for any postRequest params which will then import into postman just fine (with the value replaced by the concrete value specified by the example) but a similar approach doesn’t seem to work with path params.
Any ideas?