Year-round tyres or summer tyres in winter?

Hello guys, I can’t decide. I made the mistake of equipping my Audi A6 4B 2.4 with all-year tires (Goodyear Eagle Vector+). They were down at some point and I didn’t know how long I was driving the car (Bj 2001, 185,000km), so I bought the same one again. They’re down now and I have to decide: 1) Do I take a proper Continental summer tire and drive it in the winter? I don’t know how the grip is. 2) Do I take a tyre? the other GJR from Hankook (Optimo4s) and hope that the one is better than the much-praised Goodyear? 3) Do I take another set of Goodyear? The option Winter tires fall away for me, because I would now pay 550 euros (205 he, index V) and in March 550 for SR again and the car would probably sell in 1.5 years and would have put the 1000 euros more or less into the sand. I get the car 8 times tyres not better or more expensive than sold with GJR on it. The decision f It’s hard for me, because I was never completely satisfied with my GJR. Although this applies ONLY to the areas of rain/wet/snow mud, but it’s bothering there. At high speed beyond the 200, the tires summer and winter are really good. I’ve been driving it for 5 years without an accident. So what do you think: a) Will the Hankook be better than the GY? b) Or will the summer tire be the best solution? Or is that in the case of snow undriving? I know, seasonal tyres are better, I see it as well. even as a mistake that I took the GJR back then, but I want to drive the car for 1.5 max. 2.5 years.