A Google Workspace account for a single user is relatively cheap.
So I'm not sure it was economical.
But the problem with the paid account, is that you may easily lose it in case of a CC failure/expiration.
It has some good perks. I am, however, petrified of going over the "free tier" storage limit, because if I do lose, or cancel, that One membership, then my Gmail will be completely disabled until I can bail out enough storage to go back under the 15GiB again. I think that's an extremely undesirable failure mode indeed.
That being said, searching for "unsubscribe" is definitely a genius shortcut, and I'm going to try it and see how it works for me. However, I also have enough personal correspondence over the years, with significant attachments that I'd need to scrutinize as well.
Workspace allows you to use your own domain and provide email/collaboration services for a number of people under the same domain.
A few months ago, I canceled my subscription, and when I tried to re-enable autopay for it, I found that I could not, even though banner messages claimed I could. It turned out that I could not, in fact, re-subscribe until after the subscription had lapsed on its expiration day! I had no trouble doing that, and now, autopay is re-enabled for next year, but it sure was stress-inducing to just watch it expire.