I really miss it but it was no longer maintained and falling into disrepair on newer OSes due to lacking support for DPI scaling and dark modes.
I use onenote now as it comes with O365 anyway but like most things microsoft it's bloated and slow. It offers a lot more features (tomboy couldn't even do inline pictures!) But fast responsiveness means more to me.
I'd consider standard notes but there's so many of these apps around and most are not WYSIWYG editors but instead markdown with a separate preview window. I hate that. And they tend to be slow electron stuff which makes them no better than onenote.
Not sure if this one is an exception but if so I might try it.