Is it better to use Qubes os VS Tails with its built-in Persistent Storage feature
It depends

Tails isn't really meant to be used as a daily driver. You use it (only) when you want to be anonymous. Qubes is designed to isolate vulnerabilities by virtualizing everything. So it depends on what you're using it for.
Interesting thing is, what happens when they arrest you and as a proof, they find out that you have installed Tails on Flash Drive? Can this evidence be used against you?
In any case, NEVER INSTALL Linux on a machine that previously had Windows 10 or Windows 11 installed, because the GDID remains as a fragment even after formatting, and it is still unclear whether it is truly inactive or retains some level of activity. Microsoft says it remains 100% inactive, which is why I don’t trust it, and we’re working to understand this.
If things are that f-ed, then why don't we assume that spyware is integrated in a hardware level? Maybe motherboards already have a spyware and GDID is not really the biggest challenge here. We will never know, will we? There are open source hardwares too but building a computer with them isn't really nice.
Did i miss something? the GDID string probably still exist if you only quick format the SSD/HDD. But based on this thread, GDID string seems to exist only on Windows registry and Windows server.
Let's say that there is an erase option in BIOS. If I format my SSD from BIOS, is it still possibly a threat that I had previously installed windows? What's the best way to wipe data on SSD to basically return it to factory reset? Or we should buy a new SSD all the way? Or what about tools like Blancco?