Even a much weaker ryzen 3 1200 4 thread cpu will not limit a gtx 1050 in most titles excluding gtav, a cpu hungry game. Your 3770 is much more powerfull so i wouldnt worry about it. A gtx 1050 can deliver 60 fps in most games at 1080p low-medium settings. Some older titles can be cranked up to max.
I get 120fps at full hd settings cranked to max with aa and everthing in tf2. I can even crank my resolution to 4k and still have 60fps maxed out.
Cs go is great 1080p maxed.
Fortnite stutters at any settings at 1080p but will run at 60fps medium settings with unplayable freezes and stutters. Id expect the same from pubg although i cant confirm this.
In GTAV at 1080p high settings with no motion blur and no aa i get 80fps limited by my cpu. My gpu is only at 75%.
With a more powerfull 3770k you will run into purely gpu limits and have decent performance.
At least at online stores in the US, it's possible to get a Radeon RX 570 for not much more than a GTX 1050, and that card should offer nearly double the graphics performance in GPU-limited scenarios. That could mean the difference between getting acceptable performance at high settings or at low settings. The only way I would consider the 1050 or 1050 Ti as worthwhile right now would be for someone with a pre-built system with a 350 watt or lower power supply. If you have a 400+ watt PSU with PCIe power cables, an RX 570 would likely be the better option...