Of course, it can always happen from time to time that you have issues with the system or things simply don't work the way you'd like them to. But here, you don't need to worry. Shopify provides excellent support, just like individual apps.
Shopify Support
Help Center: https://help.shopify.com/en
Contact Support: https://help.shopify.com/en/support/login
Appstle Subscription & Loyalty
Once you've logged into Shopify and opened the app for subscriptions, you'll find a section labeled "Support." If this information doesn't assist you, you can always contact support directly through the chat button (bottom right). They always assist you very quickly
Request a Quote and Hide Price
You can access support for the quotation request app directly through a chat in the app. Here too, there is a section labeled "Support." You can find the chat function or request function at the bottom left.
Translate Language - LangShop
Here as well, you can contact support through a chat, or you can scroll through the help section.
Product Options Variant Option
This app is used to create inquiry forms. You can contact support for it through the app.