Thanks to the dominance of SEO optimised posts about WordPress from all manner of companies, any blog posts about wordpress.com is very, very difficult to find. Especially those about moving from self-hosted WordPress to WordPress.com. Here are some I discovered and kept for posterity:

“…was surprised that they offer WordPress.org hosting. I always thought that WordPress.com offered only Multisite (i.e. no FTP and restrictions on themes and plugins). The best part is that the Business plan (which I signed up for) is about 40% of the price that I was paying for my previous hosting).”

https://organicweb.com.au/wordpress/moving-wordpress/

“… there’s software out there that just kind of bridges the gaps between hosted and self-hosted. Most prominently, that’s WordPress.com. It’s the company founded by the creator of the actual blogging software WordPress, which can still be downloaded and then installed on your own space, but instead of doing this, WordPress.com hosts your blog on their space.”

From https://stormgrass.com/a-rebuilt-wordpress-com/

Back in June, I decided to migrate this blog from a self-managed installation of WordPress to WordPress.com. I’d done the self-manage thing for more than ten years, and I decided that I would rather spend my time writing instead of managing my site.

From https://jamierubin.net/2021/12/19/a-shoutout-for-wordpress/

Depending on your personal/organization goals and requirements, moving your self-hosted WordPress site to hosted WordPress.com can remove the headache of constant maintaining and updating your WordPress site.

Which reduces your cost and investment in your website.

So you can focus on your organization/business as well as writing new content for your site.

From https://www.lireo.com/do-you-really-need-a-self-hosted-wordpress-site/