There's a smarter way to build this, and it starts with how you structure your data rather than how many formulas you cram into a cell.
The user who posted this is clearly capable, they've figured out dropdowns, XLOOKUP, and even a tagging system. But they've hit the wall that almost every spreadsheet user eventually hits: the data isn't shaped for automation. Their templates live on another sheet, copied and pasted manually for every job. Their XLOOKUP returns errors because the formula is locked to a single row instead of scanning the whole lookup table. And the fix they're considering, a separate sheet per product template, would only multiply the problem.
Here's the core truth: autofill only works reliably when your source data is organized as a flat table. That means one row per product, one column per attribute. No merged cells, no side-by-side template blocks, no scattered "tags" that require a different formula in every highlighted cell. When your data is flat, a single XLOOKUP on the product name can pull every associated value, warranty years, coat types, pricing, into the right columns. The formula doesn't need to be rewritten for each cell; it just references the same lookup key and shifts the return column.
The user is already 90 percent of the way there. They've got a dropdown selecting a product. They understand the lookup concept. The missing piece is restructuring their template sheet into a clean two-dimensional table: product names in the first column, and every property they want to autofill in the columns to the right. Once that's done, a single XLOOKUP in each output cell, using the dropdown value and the correct column index, will populate the entire green area without error. No per-product sheets, no manual copying, no value errors from trying to stuff a whole array into one cell.
Stop building templates that require you to copy and paste. Build a lookup table that does the work for you.