Will app-reserved metafields be accessible in Flow after public_read_write permission is deprecated?

Shopify Flow
1

Shopify is deprecating “PUBLIC_READ” and “PUBLIC_READ_WRITE” permissions for app-reserved metafields from May 1st. The new permissions will be “MERCHANT_READ_WRITE” and “MERCHANT_READ”.

From the documentation these permissions means that:

The metafield or metaobject will be readable and writable by merchants via the Shopify admin.

Only the owning app can read and write to it via the GraphQL Admin API.

Does that mean that metafields with this permissions won’t be accessible in the Shopify Flow app?

Eg.: The merchant won’t be able to use an app-reserved customer metafield as a variable in Shopify Flow?

2

Just tested this and seems that app-reserved metafields with “MERCHANT_READ_WRITE” access can still be used in Flow as a variable and be updated with “update metafield” Flow action

3

Correct, Flow will still have access to app-owned metafields.