Sure, you can open a Feature Request to support delimiter-based indention in the editor.
Referenced FR: https://forum.obsidian.md/t/support-delimiter-based-indentation-in-editor-live-preview/49569
Related FR: https://forum.obsidian.md/t/re-introduce-a-way-to-set-how-many-spaces-a-tab-keypress-is-converted-to/95426