Fedora makes major upgrades pretty easy - you can even do it via the GUI Software Center, then reboot.
Personally I'm using Kinoite[1], an "immutable" version of Fedora that has an immutable base image, which makes it nearly impossible to break things during updates (even major upgrades).
If you can already subvert the flow of execution enough to jump somewhere you shouldn't be, you probably have better targets elsewhere in the binary than a conditional branch.
Certainly true if you control the entire value; but if you can only flip a bit or two then this does provide a trampoline to increase the exploits range.
Probably more of a "stick it in the toolbox for automatic use" rather than building an exploit around it type of situation however.
A common exploit technique is to use what’s called “Return Oriented Programming” to jump to different locations throughout the file to trigger little “ROP gadget” instruction combos to accomplish what you need to do.
Not only 5 year old PCs are still actual, but even 10 year old machines are still lot in use. Because there are already enough performance for everyday tasks for majority of tasks - videos, emails, messengers, etc.
But this is a problem for Microsoft and computer manufacturers, they are overstocked and have to convince users somehow to upgrade even if there is no reason to do so.
“Days instead of weeks on the mountain foot” - that’s the crucial point. Less time -> less money spent on accommodation, supplies, personnel there. Obviously they don’t want to lose income.
Do not under any circumstances use rlottie for your application if it consumes untrusted animations. It is not secure software and Samsung does not service security issues.
*I will add though if you absolutely need to, use Telegram's fork. They've at least fixed most of the known issues (with very great commit messages like "fix bug")
There is also the ThorVG project, which has better support for Lottie and is a more robust graphics library and was created by the same people. https://thorvg.github.io/
If I give this GameKey card to the friend, will he be able to download and play it? With card inserted, of course. If not - these cards are just glorified activation codes