Gaming doesn’t generally require a lot of bandwidth except when downloading a new game or an update. It’s much more important to have low latency and a reliable connection. If you’re noticing problems it’s much more likely to be wifi related, and upgrading your internet connection won’t help with that.
For your work it shouldn’t make much of a difference either, even if you’re using a remote desktop.
Even the highest tier Netflix video uses about 25mbps, so with your current tier you could have 12 4K streams going before you’d notice any slowdown.