In my household it generally goes like this:
My wife buys everyone else presents and says they come from both of us (they know its from her) and I buy her presents. She's the one person that I make the effort to mentally catalogue things that she has expressed interest in over the year so I can actually *surprise* her with something nice. She's also the one person where money isn't really an object, so I have no qualms about buying her something really nice.
We generally keep frivolous purchases throughout the year relatively light, and actively avoid buying every POS chachki that catches our eye, which also makes Christmas a bit easier.
She has told me that buying gifts for me is a huge pain in the ass though, since I want relatively little but when I do want something I meticulously research until I know exactly what I am getting for the price I paid. She has leaned into just point blank asking me exactly what I want, down to the SKU number, rather than trying to surprise me .