Comparison

Microsoft 365 - Sign into Copilot vs LibreOffice

Microsoft 365 - Sign into Copilot lands on Depends, and LibreOffice lands on Worth it.

Microsoft 365 - Sign into Copilot

Depends

Confidence: Medium

Buy it if your work, school, or clients run on Office files, Excel, and Teams.

Worth it

Confidence: Medium

Buy it if you want a free, private, offline office suite and can tolerate minor Microsoft file-format quirks.

Microsoft 365 - Sign into Copilot versus LibreOffice
Compare	Microsoft 365 - Sign into Copilot	LibreOffice
Verdict	Depends	Worth it
Best for	Office-file-heavy teams	Privacy-conscious individuals
Who it's not for	Light users . free web apps cover you	Teams needing real-time cloud co-editing
Privacy	No known public vulnerabilities found in the sources reviewed; Microsoft claims Copilot is built with security, privacy, and compliance, and the domain scores 79/100 on GridinSoft.^¹	Public advisories page; CVEs disclosed and patched through regular releases.¹³
Support quality	Edu complaints and public incident threads	Guess: community forums, no vendor SLA
Public sentiment	Users treat it as the default office suite; gripes center on subscription cost, sign-in friction, and edu support rather than capability.^⁶	Users treat it as a genuinely free MS Office replacement that opens most files, with occasional formatting and collaboration trade-offs.¹⁶
Biggest gotcha	Guess: heavy lock-in . mail, files, and Teams history live in Microsoft's cloud; migrating out is painful.^¹	Old installs carry known RCE and DoS CVEs; update promptly.¹³