We’ve had a need for this too in our company, mostly with a particular Type of ours; product order.
Already we have plenty of Fields. Some Fields are utility fields for other Types or Fields (which uses them for filter/sorting/calculations), some Fields are used for all kinds of orders, and some Fields are used on most orders.
Having to create different order Types is not a suitable solution either. We have category and then a subcategory of products. The Fields would even depend on the subcategory. There’s also no way to have some sort of wildcard Field that can show links from many Types in one Field.
There are other things (e.g. specifications) we wish was a dedicated Field, but they’re only used for an order of a specific product. This means a condition is met to determine if a field is useful to show or not. Therefore most of the time they’re useless and adds to clutter, and instead we have to write them into the description field and highlight.