WordPad was good for this on Windows - maybe too good. AbiWord looked like it might be similar on Linux, but never kept up. There is a very light weight, free

WordPad was good for this on Windows - maybe too good. AbiWord looked like it might be similar on Linux, but never kept up. There is a very light weight, free program called "The Guide" which is also good for notes https://portableapps.com/apps/office/the_guide_portable https://portableapps.com/apps/office/the_guide_portable https://theguide.sourceforge.net/ https://theguide.sourceforge.net/ It hasn't been updated for about 8 years, but it doesn't require installation and we have found it very useful.