I found the KMS Pico Pro Utility on Peerlist. This is an activator with advanced features. Supports Windows 7-11 and Office 2007-2024. The main difference is the dual engine: classic KMS and TSForge (a new method that works better with Windows 11 24H2). There is an activation backup (you save the license before reinstalling), repair damaged licenses (without reinstalling Office), remove the watermark, and create a restore point. It can be run in silent mode for mass deployment. The size is ~6 MB. For those who need not just an activator, but a full-fledged license management tool.