from my extensive experience guiding companies on both Coda and notion, i have formed an opinion.
those who are comfortable with using formulas to implement complex business logic (eg. have a lot of experience with complex spreadsheets) are better off using Coda, as they can harness its much greater power.
those who do are not comfortable with those more advanced capabilities, tend to be better off with notion. but then they will have to a lot more work manually day to day, because notion has almost no processing abilities in its formula language.
this difference is, imho, the reason for the higher population of users of notion.
but if you are able to exploit the amazing automation features of coda, then you do not need all those pre-built templates and videos… because you will prefer to build your own - and they will match your needs and the needs of your business far better.
just an opinion
max