Hey Francesco! Marie here 👋
For me it's:
2. Llama Life (I'm biased of course)
3. Due app
I use Notion to hold ALL my to-dos, projects, articles I want to read etc.
I transfer to-dos to Llama Life for focus during the day.
And I use the Due app for reminders.
ToDoist (I have it embeded on my Notion Dashboard)
Google Calendar - it connects my ToDoist to my smart home devices for grocery lists, tasks and shared projects with the family. I also have dinner plans, shared events and all my projects on my calendar. Again, I embed this on my Notion Dashboard.