Compared to the $10 per month Disney charges, Netflix's $7 ad-supported tier is $3 cheaper. Deadline reports that Netflix has 70 million people on this plan globally. That's more than Disney+, but with worldwide subscriber numbers of 282.7 million, it means roughly 25% of Netflix users opt for ad-supported.
Back in December 2023, 5% of Netflix's US subscribers were being shown commercials, compared with 17% for Disney+. It appears a lot more people have chosen to save money and go ad-supported over the last year.