Although I deliberately avoid Evernote and Notion for those stated reasons, I'm fine with Microsoft Word. I've been using it for 20 years. It even opens my proprietary DOS WordPerfect ("*.wp") files from 1980s!
Sometimes I need more flexible layout of fonts and graphics and MS Word is the tool I use for that. Markdown isn't an alternative. (EDIT add: Markdown isn't powerful enough for the style of documents I write. E.g. MS Word has tools to overlay graphic elements like arrows and callouts floating as editable layers on top of screenshots. Markdown can't do that.)
I'm confident I can still use it as a tool decades into the future. Even if Microsoft became more user hostile and eliminated local install in future versions and required a cloud-only Office 365 account, I'll just keep using Word 2019. LibreOffice may also be a Plan B option to open docx files. Not nervous about MS Word files at all.