[ThatPlayer]

I'd say the difference is I can make a full backup of my data on office365 or AWS. From office365, I can export my documents, my emails, my drive storage. AWS: I get full access to my databases, my files.

Even comparing Discord to Slack: Slack has export capabilities.

[ivanmontillam]

Given what you just said in your comment, I guess what makes them different is that Microsoft 365 and AWS are enterprise-ready, so you can take away your data easily. With Google, with a regular account, you could as well using Google Takeout.

With Discord... you might have to strong-arm them into a GDPR claim or similar, so, vendor lock-in in a B2C SaaS is a thing.