I have been using QOwnNotes for about 6 months. It is cross platform, lightweight, extensible and a plain-text markdown note-taking program written in C++/Qt. It can integrate with Nextcloud. Installable via scoop on Window and apt on Debian† (after installing their apt key).
Author is quite responsive on GH issues.
† Also most major Unixes
Every time I am tempted to buy a Hyryder, this is what comes to my mind. I drive at most 50 kms/week. We are probably some years away from this becming an economic reality.