It’s not just about a single issue, the company has changed significantly over the past 8 years. It has grown too large and now offers many products that I don’t use. As a result, it no longer aligns with my needs, and I’ve decided to take more control, similar to when I stopped using Gmail. I’m not suggesting you should stop using it, I’m just making a personal choice that works for me.
Personal domain and an imap provider so that I can easily switch in the future if needed.