Your example is actually the only time I've ever seen this side-by-side-style login page with the form on the right. Mailchimp, Quickbooks, and Alliant CU, for example, use the same layout as OP. I'd guess that Rippling is really trying to push their marketing, which is why it's on the left. Source: almost 3 years ago

And, of course, you need a Mailchimp account. If you still haven’t had an account, create a new one here. - Source: dev.to / over 3 years ago

3'rd qtr. Conference call has been attached to the company's website ( quotemedia.com ) CEO says company just had their best quarter ever and next year will be better yet! While you are on their site check out the list of testimonials from their "A" list of company customers. Source: over 1 year ago

I dont even know what a sine wave really is honestly - but I believe thats essentially what ive been 'seeing' lately. quotemedia.com shows various metrics that seem to point out a similar, or at least concurrent pattern in the pricing graphs/data. Source: over 2 years ago