They do get hot, whether that's an issue or not is another matter. My EVO 960 doesn't have a heatsink and I'm not particularly worried about it and I'm some one who spent over £100 on Noctua fans and isolation mounts for his last PC build :)
"NVMe drive (without heatsink) is £103.44". Do them thing's get hot enough to even demand a heatsink of any form in the first place? (or is that perhaps just me, thinking too much?, lol).
NVMe drive (without heatsink) is £103.44 from Amazon (and £5 less if you have Prime and buy it today)... https://www.amazon.co.uk/WD-Black-WDS500G2X0C-High-Performance-Internal/dp/B07MH2P5ZD?SubscriptionId=AKIAI3VLI6HITR26KCBQ&tag=userbenchmark-21&linkCode=sp1&camp=2025&creative=165953&creativeASIN=B07BR9FV1C&th=1 So £40 for the 1TB spinning rust - seems like poor value for money to me.
What caddy is recommended for the 3.5 drive if you want to use as an external drive?