BlueTopaz - is it safe?

Hi all! New to Obsidian and loving it. I’m moving from a feature-rich experience at Notion and trying to make Obsidian work for me.

I love the look and feel of the BlueTopaz theme, and I went also to the Github to download the Vault that has all the example pages, but I was greeted with a big warning not to trust third-party / community plugins or themes since there’s basically no security sandbox in Obsidian.

When I went to look at the test vault, it had over 94 plugins, and of course, so much of the pages are in Chinese which I don’t understand. Do I have reason to be worried or concerned about the BlueTopaz theme and also opening up and using the sample vault (and/or the other 94 plugins)?

Is there a way to look at the sample vault and enable one plugin at a time? It seems I can only run them all trusted or not at all. I have already done that (my mistake!) and am worried about being compromised.

Any thoughts? Should I be worried?