Of course, there is no perfect app or tool that will instantly make you productive. Your second brain doesn't replace your first, it's not some superhuman addition. Of course, you have to put in the work and decide for yourself whether the tools is working to your advantage or not. Identifying how you work best and where you spend your time most is key to applying the Second Brain concept to your life.
An amazing blog and YouTube channel you should also follow is Keep Productive. Francesco not only gives you Notion Alternatives but regularly posts content about the latest updates to apps like Roam Research, Evernote and various other productivity tools. It's really good to keep in the know of what's new in this industry as you might find yourself being enticed by another cool-looking app.
Not everything is meant to be, but everything is worth a try.