Word. I do the same. The web versions aren't perfect but they do the job. There are way too many Android-only users in these comments that don't have a clue what they are talking about.
Notes web version is pretty limited though, ex: can't attached images.
I use Notion in cases where it's too limited. Unfortunately notion charges for really large attachments.
Trick I do do sometimes is, just WhatsApp the files to myself and attach them from my phone