Core issue: The Shopify Bundles app only renders 3 bundle components on the product page due to the standard variant picker, despite marketing support for up to 10. The official Bundles Example App produced a blank app block.
Desired outcome: An app block/section with a “bundle variant picker” that displays all bundle items (e.g., 3 configurable + 2 non-configurable = 5 visible), matching the Bundles app’s intended behavior.
Current workaround: Using a product list metafield to manually re-add and render non-configurable items beneath the 3 visible options; considered suboptimal.
Constraints clarified: Each of the 3 configurable products has only 1 option.
Decision/next steps: The poster is abandoning the Bundles app and building a stripped-back Remix app to implement bundling per Shopify documentation, while planning frontend workarounds to bypass the 3-component limit.
Alternative suggested: Use a product options app (Easify Product Options) with an “add-on product” feature to include unlimited products, provided each has ≤1 option, noting Shopify’s guidance to use options apps to exceed 3 options/100 variants.
Status: No resolution confirmed; request for a ready-made bundle variant picker example remains unanswered.
Luckily for me, 1 option each - for all 3 of them 
I’m actually in the process of building a stripped back Remix app to do the bundling properly, as per the Shopify documentation - I’ve abandoned the Shopify app. It doesn’t adhere to the documentation it claims to align with (it’s a fake bundle, essentially).
I’ll still need to work around it though on the frontend, if we’re to avoid those limitations.