Yes - the rufus developer(s) is not fond of Manjaro - because the team won’t change the ISO layout just to support Rufus tool.
→ The ISO files have not been made compatible with ISO/File copy mode - #8 by nikgnomic
When I last checked - years ago - Rufus switch to dd mode when the filesystem contains manjaro’s filesystem
Ventoy is the recommended tool - you may have to check if using grub mode is better than default.
Plain old dd also work.