Full-text search is fast but blind to meaning. See where BM25, stemming, decompounding and synonyms break in e-commerce and why patching them never ends.
Ecommerce search and web search (SERP) optimize for opposite goals - SERP only has to rank a good top-k window; ecommerce search has to get the entire result set right, because facets, filters, and sorting all operate over the full set, not just the top few results.
Ready to make product discovery your biggest growth lever?