HelixNotes is completely free, open source, with no bloat. Your notes should be yours.
So we made sure they are. https://helixnotes.com/
I like Trilium because:
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Docker based so I can access from a web browser on any device
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Has both WYSIWYG and Markdown note-taking formats
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Can display math symbols in WYSIWYG, essential for anybody studying STEM
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Has a mind graph view to see linked notes in knowledge clusters
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Storage system is intuitive as every note is both a folder and a note, allowing for extremely modular storage
Helix could be cool, but it's going to take a lot for me to transition off of Trilium now.