OnWorks free hosting provider that allows to run your workstations Linux online, Windows online emulator or MACOS online emulator only using your web browser.

All you need to know about OnWorks.net
https://www.onworks.net/blog/all-you-need-to-know-about-onworks-net/

Run macOS on Linux with 1 COMMAND
https://yewtu.be/search?q=macos+running+in+onworks

This Linux PC Runs macOS Faster Than a Real Mac
https://invidious.protokolla.fi/watch?v=-Otg7JFMuVw&t=440