Ahh. Not necessarily. Bloatware is trixy. Many times it's not just the startup, it's the continued presence. If you've ever modded skyrim, you have to load certain mods in a specific order or what happens is you get instruction conflicts and makes for a bad day when your toon is running around with a black void for a face. Windows and Bloatware isn't much different in theory.
Symantec, Java, McKafee, Adobe are some of the worst offenders in that they can constantly check to see if stuff is installed. Which means internet access, checking version numbers, checking for updates etc. And isn't necessarily relegated to a background task. Dell is the worst for this, it's always checking itself against itself just to see if it's still itself and hasn't meen modified or deleted, G forbid you have anything in a Dell pc that's not Dell certified, authorized or signitured.
And every single instruction bandied about is a possible point of conflict with an existing instruction or instruction from another provider using the same service, name, process etc.
Nvidia ran into that issue several years ago. Certain driver versions in order to try speed things up would access the windows font cache. Just for use with subtitles in games if ppl optioned for that. But with windows and nvidia both accessing that cache simultaneously, using the same services and processes and prefontcache, you'd get idle cpu usage of 45% and game usage of 70-100%.
If the pc runs fine, no real need to worry, but you can get unforseen issues.