My living room TV is a 10 years old dumb device, attached to a Pi running Kodi.
My office TV is an old TV from the 70ies (also attached to Pi, connected via an HDMI->Antenna converter) which I bought on eBay for 15 EUR in 2007.
I buy only refurbished smartphones, because I cannot find a modern device which comfortably fits into my pocket during cycling.
Most of my other devices (keyboard, mouse, speakers, headphones, scanner, ...) I bought as a teenager in the mid-2000s. I only replace them when broken, which so far only happened to my old printer in 2014.
Our vacuum cleaner is also 15 years old.
We have slowly and unconsciously removed most electrical devices from our kitchen, with the exception of an early 2000s dishwasher, an electric kettle, a 1998 stove, a mixer from 2008, an IKEA fridge, and an old radio from the 70ies.
A few years ago, we needed a clothes dryer. After doing research for some days, we bought... a used Miele Novotronic from the 90ies in mint condition for 60 EUR from an old lady. (The build quality is ridiculous, I suspect this thing will outlive us).
Our family bikes are all pre-1985 (easier to repair than modern ones).
We are in our mid-/early 30ies with one child. We never consciously decided to downgrade our devices or "go retro". Typically, a modern device would break down, and we would replace it with its earlier version which was still located somewhere in our or our parent's basement or some closet. More often than not, we would not replace it because we didn't need it anymore (best example: coffee machines, a french press is completely sufficient and more convenient for us). There is also an aesthetic aspect. I simply find most modern devices incredibly ugly.
Also, maybe it's because I am getting old, but whenever I see a modern laptop / household appliance / car / etc., all my bullshit detectors go full blast (I also cannot stand devices telling me how to live my life, and for me this starts with a dishwasher that beeps when finished).