Glide Big Table Limitations Vs Postgres Limitations

We are starting work on an app that requires a large amount of rows.
Deciding between using Glide Big Tables or Postgres as a data source.

Questions:
Do they share the same limitations? e.g. rollup limitations on computed columns etc?

I see there is currently a ‘preview’ feature called “More computed columns in Glide Big Tables” - is this explicitly for Big Tables or does this apply for all ‘large data sources’ such as Postgres?

Are there any obvious ‘savings’ from a monthly syncs quota perspective of using Postgres Vs Glide Big Tables?

Thanks!

Here are their documented limitations at the moment.

I’m not sure but they’re only documented for Big Tables at the moment.