Yes, I do! See this thread for some more info on my setup: How to regularly use task manager/todo list?.
Otherwise I’ve clocked up about 36k completed tasks over the years, which in Todoist gamification language equates to ‘Enlightened’ (yikes … and there is no next step upwards from there even if I feel less than enlightened most days). But then I run everything out of Todoist, from my academic work life, mundane personal tasks not to forget such as daily stretching, or the Saturday morning grocery list.
Lots of things to wish for. In my case, better integration with Mac Outlook (I want links to locally stored emails rather than to the online Outlook, but I get that is not a Tidoist problem!); or a way to link into ToDoist projects directly (via the x-ref… links) in the same way that I can link out of Todoist for instance to DEVONthink or Obsidian.
But I can’t ever see myself leaving it because I know it so well. I have very little friction getting tasks into it (directly on Mac and iOS; and occasionally via Drafts) and task organisation is very quick, and so a move to any other task manager is likely to create more pain and overheads than time won. I do occasionally peek across the fence, so to speak, but quickly return to what I know and which has never disappointed.
Like @fuchsr I don’t really care about this ‘native app’ business (I’m not enough of a purist).