I shaved 2 mins off of my computers boot time by disabling this service and saw no real difference in my PC. I don't know why it was there, I think it was supposed to wait for network to be configured, but it took a whole 2 MINS to do its job. now instead of taking 3 mins to boot, now my PC only takes one minute. Has anyone tried this before and faced problems? Should I re-enable this service?
Yes, but if you search in forum 
For me, it is 6.4 sec. for NetworkManager-wait-online.service
systemd-analyze
Startup finished in 16.662s (firmware) + 7.589s (loader) + 2.408s (kernel) + 9.485s (userspace) = 36.146s
graphical.target reached after 9.485s in userspace
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I believe the service you mentioned and the service I disabled are different. Are they both there for the same reason? If so, why do you need 2 different services to do the same thing? And why does systemd's service take literal MINUTES and NetworkManager-wait-online.service be done in like 3 seconds?
I think it is because there is a 2 min timeout on the service I mentioned, But why does the service exist in the first place?
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https://wiki.archlinux.org/title/Systemd-networkd#systemd-networkd-wait-online
Unless systemd-networkd is being used to configure the network then this service shouldn't be enabled.
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Right, I thought you made a mistake Typo. Sorry.
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Using the default boot process my system takes 6.5 secs to cold boot to he desktop using a haskwel i5. on any linux system I just don't understand how things get so screwed up on certain systems its not logical. I use Gnome by the way if that makes any difference.
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