"This Team has reached its row limit" on Legacy Starter only using Glide Tables

[MaximeBaker]

You might want to read this:

This team has reached its row limit notification - Starter plan/unlimited usage

In case you are not aware, the new plans all include 25k rows at a minimum. There are zero updates for adds, edits, and deletes against Glide tables. The biggest consideration in your case is probably the type of user, since Free and Maker plans only allow Personal users. You may want to look over the new plans to see if they fit your needs.