With the notable difference that there is no magic ingredient to Overleaf.
If you have all the files you can recreate the documents with a local latex installation. Overleaf makes this easy, since you can sync it with github repos.
Good luck accessing/recreating a google docs document if google has an unexpected downtime or gets shut down eventually.
If you have all the files you can recreate the documents with a local latex installation. Overleaf makes this easy, since you can sync it with github repos.
Good luck accessing/recreating a google docs document if google has an unexpected downtime or gets shut down eventually.