Careful eyes can protect you, but in times were its getting more and more easy to launch pretty sophisticated attacks and sideloading some small btc stealer is pretty easy.
There are more than enough ways with spoofed domains, hacked accounts and so on. When billion dollar companies with EDRs and what they all have still manage to get infiltrated, someone in a busy business day can fall vicitim to︀ the same thing.
Example:
And a lot of ways with Word documents with macros etc.︁
Best bet: Clean/empty device + HW wallet or protected pc would be my go to.︂ Additional protection doesnt hurt and the tracking that happens is negligible to that of what︃ a stock windows system with its tools & browsers does. Im not saying some should︄ use an AV and then be blind, go download cracks or whatever file looks interesting.︅ Just keep those careful eyes and have a backup.
Also Windows own AV is enabled︆ by default on Win10 & 11 unless you disable it in the regedit, group policy︇ or with Defender Control.