We have a mix of antique (100-200+ years old), vintage (mid century) and a tiny bit of contemporary furniture/art/decorative bits. The contemporary is mostly rugs, mattresses, sofas (although we do also have one original Arts & Crafts sofa), some ornaments and art.
Over the past twenty-five years we've lived in a range of different architectural style houses - Victorian, Tudor, Arts & Crafts, a 400 year old mill and now a Georgian cottage by the sea. Our furniture has looked great in all of them as it's such an eclectic mix.
The antique stuff was purchased around twenty years ago, the vintage in the past ten years. The only time we've got rid of any was when we downsized a couple of times. When we sold the antique furniture we would ko longer have space for, most of it went for the same price or more than we'd paid - but it was original Art Nouveau and Arts & Crafts that held its value well, eg, a Liberty sideboard we sold for 4k.
Otoh, my parents had loads of Old Charm (they'd sold their Stag furniture which is now desirable again) and a fugly but well-built three piece suite that had been re-covered twice since new in the mid 1960s. They bought once and - mostly - kept forever and I know they didn't get bored of it. When they died we struggled to sell their furniture, although the young couple who purchased their house had the sofa etc.
Our Georgian cottage was last renovated in 1965 and was full of truly hideous DIY built-in furniture (mostly bed frames, dressing tables, desks) dating from that period when we bought it in 2024. We wasted no time in ripping it all out, although we've kept some of the in-frame kitchen built at the same time as they are timeless, imo.