My solution to this problem is three-pronged.
First, everything I’m working ends up either on, linked or backlinked to my daily note. I created a section called Work Log where I outline all the things I’m working on that day. If it’s short and easy to understand in a couple of sentences, I just enter it as a bullet item under that section.
If what I’m working on requires more thought or a lot more notes, I created a specific note for it and link it directly in my daily note under the Work Log
Lastly, if what I’m doing is only tangentially related to what I’m working on, I’ll create a note for it and backlink it to the daily note. That way it’s not interfering with the content of the daily note, but is still related to it in time. This is how I handle my Resonance Calendar, which contains articles, podcasts and videos that I absorb throughout the day.