Microsoft has collaborated with Google to develop a feature in the chromium project to enable Microsoft Windows spellcheck, instead of Chrome using open source proofing.

This means all Chromium-based browsers will benefit from Windows Spellcheck integration from V83, and for Windows 8.1 and above.

Moving to Windows Spellcheck has a number of benefits, including support for additional languages and dialects, a shared custom dictionary, and better support for URLs, acronyms, and email addresses.

[blogs.windows.com...]