My debian machines usually only have their uptime interrupted by power outages or the like. They’re not my daily drivers, but very stable and reliable.
I have Linux mint on my “daily driver” (used for work and gaming) desktop and I’m also very pleased with it - most updates can be installed without rebooting and it’s over-all a pretty trouble-free experience!
Hope this helps!
I think they were specifically referring to “CD” account, which generally speaking pays more interest than a standard savings account but requires a commitment where you cannot access the funds for a fixed amount of time 6 months, 12 months, etc)