And probably that is the main reason why crypto enthusiast prefers to used their mobile wallets, it's convenient and with just a few clicks they can do everything with that phone.
However, there are still some old and very traditional users like the rest of us who don't used their phone as crypto wallets, or they have installed but not putting a lot of Bitcoins on them because of the risk involved. Mobile phones are always online and chances, you might be the next victims of hacks and then losing your precious Bitcoin.
The habit of using a laptop/smartphone could be part of the reason, but sometimes this is inaccurate. I have clear criteria for choosing to use a smartphone or laptop to interact with my account through various wallet apps.
When using Coinomize.biz Mixer, I need a large enough screen to keep track of everything and avoid mistakes in operations related to the BTC receiving address. That's why I use my HP laptop and Ubuntu OS.
On the other hand, when using CEXs or DEXs, I prefer using a smartphone because their apps provide all the basic features and I don't need to pay too much attention to the crypto receiving address. I have an old iPhone to install CEX and crypto wallet apps, it's usually offline and only connected to the network when I make transactions or trade/swap.