Notion and Obsidian are great, I use them weekly too. But I don't think bookmarking should live in an text editor. It can still work, just like Apple Notes can also for people with limited needs, but it doesn't do: quick search/filter/ordering, rich previews (these cards are not DoubleMemory cards imo), immersive reader, archive/notes, keyboard navigation... Pocket also don't have these, so Notion/Obsidian may not be much a downgrade, if your needs are simple, it's totally respectable way to organize your content, especially if your workflow is already centered around these.