Question about serving JS and CSS assets

Question about serving JS and CSS assets (and probably) images from R2. What is the current perspective and the most optimal way to serve assets from R2 that are public and immutable through a custom domain? I see old threads about tiered caching behavior not working for custom domain + public bucket. Would that mean I should implement a worker to operate on my custom domain to read from R2 and respond with cache control headers to leverage tiered caching?
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