I will repear my previous comment due to the quantity of people who commented after myself.
Good news: I created a free HubSpot connector for Google Data Studio.
It’s a MVP - but it does work. And it works without the need to replicate HubSpot data somewhere else.
It’s good to see some comments above mentioning that HubSpot is considering implementing that feature but this feature request was done in 2017 and until now there is only one Google Form.
Guys, it took me just 1 day to validate the idea with ~100 lines of code and another one to create this MVP connecting with HubSpot API via an API key. Some stuff shouldn’t be that complicated. I am a developer but a beginner on Google Data Studio and and in Google App Script.
In any case, I created this connector as an Open Source project on GitHub. For those of you who are willing to help the project by using it, giving feedback or even helping me coding it, your help is much appretiated!
If you are interested on the project, I ask to keep all the communication about this (unofficial) project on GitHub by using the “Issues” tab.
This connector is not (yet) listed on the Data Studio community connectors marketplace so in order to use this MVP connector please use the following connector ID:
AKfycbxV7A6FNmaz_voWMAYXJWM0O01liulUSfJ85uxF7Gwe
(This connector ID will most likely not work on the future so please refer to the GitHub project for more details on how to install, use and contribute).
If you are interested in contributing to the project please submit an issue in GitHub.