Hey there!
Its really super specific depending on your use case. There are some tricky complications that come in using Cross-doc when wanting to scale to more and more docs that I’ve run across with some larger organizations.
Cross-doc can definitely provide a valuable resource for your larger scale Coda infrastructure, but I would caution in various different ways. Again, hard to actually provide real and specific advice without sitting down on a call to hear your very specific use case.
All in all though, less rows does = more performant documents. So its just asking the question: “Are the hurdles, set up, and maintenance of using cross-doc in a rather robust way worth the smaller doc size in terms of rows that I get?”
Sometimes the answer really is yes - and sometimes no. Again very specific.
Happy to jump on a free call to help consult if you sign up for my next GetUnstuck meeting and I can help give you more specific answers in person (Sign up right now is on Twitter) : https://twitter.com/thecodaguy/status/1501257311813201923
There are different creative methods for making your doc more performant as well like archiving in unique ways, optimizing formulas, or setting overall structure and schema differently. All these options (along with cross-doc) should be explored when you really start pushing your Coda use into the stratosphere.