Wow! I read your blog!
This approach was at my original thought. I then talked myself out of it in way of "scope creep" telling myself I could get more done that I give myself credit for. Why not bring a few devices just in case? Etc. Ugh. My neurodivergent brain.
Thank you for indirecting reming me that the point of the time is to think and research and work out details, not to put fingers to keyboard and get distracted by any number of notifications.
This may sound weird but I have a few notebooks that I love. The quality of the paper, a special pen I only use in this particular notebook. I have one notebook that is filled with ideas starting from when I was about 10 and owned a Commodore 64.
I also have a Remarkable 2 e-ink digital notebook and I love it. I use it for so many tasks now. No notifications, no browsing, it just lets me write, draw, hash out, journal, plan my day, etc. However, I still have a paper planner I maintain. Perhaps I have trust issues :-)