Yes,that's correct.

If you keep changing jobs every 6 months or so and if it is a contract position, then its not considered job-hopping due to the nature of the position (even if u dont want to leave, u have to leave after 6 months).

Especially as a fresh graduate, you can just say u want gain more exposure and experience to different environment, office culture and structure as well. Some company is more structured,some is more flat. Whereas in terms of culture, you get to communicate/liase with people from all sorts of culture and management level as well. In addition, some have more clear work process, some requires you to hands on yourself.

All these is quite a decent reason during the interview where u explain to them that all ur previous positions is contract-based at the start. After that, just use the reasons i've given above. After that, let them know this would benefit yourself when u finally get a permanent role (basically the position you apply for).

However, for the above reasons, i would think if would only be viable if all your contract position all up to 2 years or lesser. Do contract position for very long can be a double edge sword too but given the corona virus period, it would still be fine. These reasons would even be better if your working in the HR industry as hr is about communicating with people.