Using Edge (Microsoft flavored Chrome) and the account personas will let you keep these M365/O365/Live identities separate, in the same way Chrome does a first

Using Edge (Microsoft flavored Chrome) and the account personas will let you keep these M365/O365/Live identities separate, in the same way Chrome does a first class job of keeping Google Accounts separate. Arguably, if you're one of the 85% of SMBs in O365/M365 instead of Google Workspaces, or if your "Login with..." personal account is Microsoft instead of Google or Apple, you should be using Edge.