GBP has recovered against HUF so the drink price increase won't be too much for those coming from the UK.
In 2019 it was £1 to 350 HUF so the 750 HUF beer was approx £2.14.
If it's 1200 HUF for a beer then compared to today's exchange rate it'll be £2.59.
So whilst Sziget will have increased the price of beer by 60%, compared to the GBP prices it'll only be approx 20% increase.