but it sure can be confusing if you don't close everything at shutdown like I do.
It can be confusing otherwise, too. It has been known to not work correctly and cause things to fire up even that you know you manually exited prior to shutdown.
Apparently Firefox (and I wouldn't be surprised if some other browsers) has this feature built in to it, where you can tell it to fire up on system restart.
Personally, I hate this feature, and I have not yet found the settings in the Win10 hierarchy to disable it as I don't know "the Microsoft magic name" for the feature. If anyone happens to be installing/reinstalling Windows 10, Version 1903, and is watching as things progress I know that eventually, I believe it's after the "Hi," screen, you get a message about this feature, which I would love to know the verbiage of that message. I would have thought this would default to "off" but it appears not, at least on some machines.
Now, back to the OP's comment, "task manager is way more comefortable and was wondering why they weren't showing on my laptop." I will give this piece of advice once more, hoping that it will be heard, but which you are free to ignore: You should use the program's own controls when those are available. It is the program that makes those task manager entries and it is the program that will remove them on request. If something happens to use multiple processes you're also certain that all of them will be either disabled or removed. It's very simply the safest technique.