Can I get rid of this Skye ‘virus’?

Just in case you’re wondering, I am using the word ‘virus’ loosely. I have multiple machines, 1 for work, which uses SfB, Skype for Business and my home machine and a side laptop (Surface Go, yes, I like it – as a side device). I notice this same occurrence on all machines. Skype is installed. I know. Duh. I don’t use Skype regularly. That is to say, maybe twice a year on the family / main pc. On all devices, in Task Manager, I continue to see Skype run in the background, including my work machine which uses SfB. I kill the process in Task Manager. I do not regularly turn off my machines, instead putting them in sleep mode. So, how is it for machines that don’t reboot, without me using the program – at all – that even after a couple of hours, if I go into Task Manager, I’ll see Skype back running?! Hence the ‘virus’ label. I kill the process and yet.. it comes back on its own. WHY?! Seriously, why?! How?!

I’m not even sure if it can be uninstalled. Like I said, I do use it – but very infrequently. It would be a nuisance to install it each time I decide to use it but, seriously Microsoft, why is Skype continually being resurrected after I kill the task? If Windows 10 is so efficient, why start services/programs that users don’t want started?