"Bottleneck" is mostly a tech-word term used to describe a situation in which one (or multiple) bits of hardware within your system are holding back the possible performance based on its imbalance with the other components for the usage. Read as a buzzword being used mostly by tech influencers and video producers to help sell sponsored equipment.
In your case, if you put on something like Riva/Afterburner you are likely going to see 100% GPU use in games while the CPU itself is barely being utilized. If you weren't playing games and this was only for something like multiple monitor support and such then the "bottleneck" (I so hate this term) wouldn't present for the use case.
Edit- The thing to focus on is whether the components give you reasonable performance along with your reasonable expectation of its ability to do so. If you are thinking that 1650 is going to turn high frame 1440+ resolution gaming, then your expectations are not in line with reality. That GPU should offer really decent 1080 gaming at medium settings with an expectation of 60 frames, give or take a bit based on the title. The rest of your machine is going to offer great performance for productivity tasks and more.