Why are you running a VPN? If you are simply shielding your internet activity from your ISP, Google won’t give a shit where you sign in from.
If you are browsing to shield your identity, you want to be fully disassociated with any non-secure browsing habits. If this is your use case, even if you are using discrete internet accounts, tracking cookies are common enough that, you would still be identifiable from your browser fingerprint. It all depends on what your risk factors are, and how much you want to spend to mitigate them.
Any competitor worth their salt will match and exceed that as a signing bonus.