Yes, that will work. But you won’t be sending a Webhook to Glide, because Glide does not listen for Webhooks.
You need to send a HTTP POST request with a JSON payload with a collection of add-row-to-table mutations - one for each row to be added.
In Make we would do this using a JSON module to prepare the payload, and then a HTTP module to make the API call. I don’t know how it’s done in Zapier (I don’t use it), but I know it can be done.