Your valid use case doesn't contradict the point that so far most consumer-focused "AI features" are rarely useful and often just get in the way. I'm pretty sure a specific "AI Shopping Feature" wouldn't actually do what you're already doing, or if it did, it would add more steps/distractions than you have now.

Just asking a web search / browser-enabled chatbot, as you are now, is already close to the optimally efficient tool for you. Unfortunately, aggregating results from many disparate retailers into one seller-neutral page filtered down to what you uniquely need today is no longer considered optimally efficient by most web retailers. Just like they erected barriers to stop being indexed by unaffiliated shopping aggregators, most large retailers will try to stop automatic aggregation of their current inventory (or lack thereof).

Sadly, we're now in a post-enshittification world where Amazon's learned removing search features like requiring or excluding terms increases revenue and Google's learned giving you the search result you want first reduces ads served.