Hi! ㄟ(≧◇≦)ㄏ
I had a 980 FE and it was begging for mercy, you can get good frames on 1080p, low settings, if your card has good cooler, so it won’t turn into a grilling pan. But i would suggest upgrading even with a second hand part (i got myself a second hand palit 3070 jet stream, it is a trooper, but the cooler can’t keep up with the heat at times.) so yeah, that’s that.
I should add games like csgo, fortnite, rainbow, gta v, rdr2, skyrim runs fine on a 4gb but still…
I would recommend to check on the websites that provide their own custom firmware/os like Grapheneos(.)org or lineageos(.)org Phones on there usually are easy to unlock, customize, etc…