From the perspective of someone who suffers from gift-choice anxiety, that was a useful article. (Kudos, too, to several commenters here, particularly @afton wrt domain expertise. This is so easy to mess up, especially buying for kids/teens.)
But - tangential, I realise - what about asking why we buy Christmas (or holiday) gifts, and especially with a scattergun approach: buy for everyone you know (family, friends, colleagues - driven in some cases by fear that they might have got you something but you haven't got them anything - it gets ridiculous), just because, er, xmas? (Comment here about power and gifts by @blueyes gave me pause for uneasy thought - genuine thanks for that.)
I spent quite a few years in places where Christmas wasn't a thing. In a couple of places, Eid was the big celebration, and the emphasis seemed to me to be on hospitality, a lot of food, loads of get-togethers, but not so much on presents. I sort of miss that - and miss the emphasis on charity in the run-up to Eid during Ramadan.
Perhaps we have lost something. I'm a fan of the poet Louis MacNeice. Here's an amateur animation to illustrate his section of Autumn Journal which starts, " A week to Christmas"[1], which I voiced quite a few years ago. (I can't find a stand-alone version of the text online.)
I am not religious, but the commercialisation of Christmas does make me uncomfortable.
[1] https://www.youtube.com/watch?v=0fV5hOWChnE
Edited to add: another amateur animation (same software, now sadly defunct) of Tim Minchin's Christmas song "White Wine in the Sun", which celebrates Christmas from the perspective of an atheist, but which also abhors the hypocrisy of its commercialism:
https://www.youtube.com/watch?v=vWQuDtxD2-c