I attended Hungarian GP in 2018 from the Red Bull Grandstand, viewing a bit of the S3, the last corner, pit entry, grid slots and first half of the main straight. I can surely recomend the spot as it provides clear view and has two giant TV screens in front, is not too expensive, closer to the fanzone and you can run to the main straight after the race for podium view. I checked General Admission back at the time and people said there weren't many screens to follow the race. It is a wide area, if you can find a good spot, you can view one of the screens near the grandstands. It gives you many options to view the track which can be an upside. I never really visited Bronzes but checking some videos, Bronze 1 looked better to me. As far as I know, you can enter General Admission even if you have a ticket from a grandstand. I was at Istanbul Park this year and I entered the General Admission to check some views as well, even though my ticket was from Silver 1.
I hope it helped.