Yes it is, and she’s also the same friend Chantal was planning to go to the Dominican Republic with last year.
To make it pretty simple, Chantal has very few friends.
There's Peetz, obviously, and he's the one she associates with the most because, well, they live together.
There's Shannon, who she went to high school with and got married a couple years ago, which led to the infamous bachelorette party video. She is, as mentioned, the one Chantal was supposed to hang with on NYE 2019 but bailed to hang with Peetz. What's fascinating here is that Chantal admitted that Shannon thought she was a flake and always canceled plans to hang out...and she turns around and cancels. I suspect it's because Chantal does not feel comfortable in larger gatherings like parties, especially if there's a lot of strangers.
Rina was a friend she met at the hospital she used to work at (or one of her past jobs when Chantal was actually a semi-functioning adult). We've not seen her in a couple years, though she did recently (within the last couple months) interact with Chantal on Instagram. But I don't believe they've hung out since at least 2019.
Chantel With An E has a couple cameos in Chantal's videos - one as a mention during a Q&A about how she was her best friend when she was a child. But most notably, appeared in the infamous St. Patrick's Day vlog as the lady in the suspenders. We've not heard or seen much of her at all these last few years and I'm pretty sure she was not at Shannon's bachelorette party (though maybe I'm wrong).
The casino friend from early 2020. She may be Shannon or Chantel, but I don't think she's name dropped or shown in the video where they cross the border into the US to go to a casino. This was right before everything shut down due to COVID.
There might be a few more but that's likely Chantal's orbit. Definitely not a lot of consistent friends.