I didn't think about much when I bought the hardware for my new computer, so ended up with some problems. Even more so with debian

1. Canon Pixma Printer/Scanner
The print driver supports for Ubuntu/fedora/opensuse, no support for debian. The driver can be installed on debian, but the check ink function doesn't work at all. I know there is cups but cups doesn't even have working duplex printing available, its surpose to stop halfway for me to flip the paper if duplex is set, but it doesn't work at all. Not really running some distribution with 10 people using it, pretty sure there is more people in debian than fedora or opensuse, so why no support?

2. AMD HD7800 Graphics Card
The driver AMD Catalyst supports red hat/suse/opensuse/Ubuntu, no debian. There is a package in debian archive but sometimes I need a newest version for games. If I didn't install it, it will show me warnings that gnome doesn't load properly, and I have no idea why. Uninstall is chaos, there is no official uninstall, so many steps and I ended up with a black screen (you cant just debian purge it)and have to reinstall debian.

3. Samsung SSD
Samsung magician program to update the driver doesn't even support Linux. I dunno why ssd needs driver update anyway, hdd never needs any new driver.

4. Gigabyte Motherboard
The app center doesn't support Linux, I have to update bios via windows and it makes debian becomes unbootable.

5. Trusted Platform Module
Asking about this one cause I read in some forums and Wikipedia. Everyone says we should disable it, so should i disable it? if so how to do it in linux. Also, how do I find out the cryptographic keys for my own hardware?

Since Ubuntu is based on Debian, I'm betting that the packages for Ubuntu will also work as well on Debian. Whether or not all of those drivers are as good as what they provide on Windows is another question, and unfortunately entirely up to the vendor providing the drivers.

For some printers, you will find that the Foomatic print driver is quite good. Personally, I try to use it when I can, unless I luck out and find that a printer manufacturer really did provide the same quality of service to Linux as they do to Windows.

I would not update an SSD drive. That's just silly.

I also would not update a motherboard unless I actually see a need for it. Updating stuff on a working system is a great way to introduce bugs, IMHO, and there's nothing your motherboard should be handling that has anything to do with security. I would definitely do this sparingly.

Disable trusted platform module IMHO. It's pretty useless, unless you really don't know how to avoid firmware viruses.