A 750ml of Chimay around here (Denver) or even when I lived in Texas up to 2018 was $9-12 (a little more here). That's the only one of the beers discussed I know offhand because I drink a fair amount of Belgian beer.
Beer is definitely more expensive these days, not just from inflation but from a host of issues. One of the things driving price changes, at least in domestic beer, is the format change to sixteen ounce cans. We saw the same thing when every beer was going into a 22oz or 750ml bottle but the demand for the can size has justified a lot of increases across the board. The insane amount of hops used in hazy IPAs always found in those sixteen ounce four packs is also a big reason why consumers swallow those prices. It's common here to see the more demanded breweries putting out four packs of IPA at $20-25 and even their four packs of pilsners or other less expensive to produce beers still run $14-16 for a four pack. When you can sell a four pack of a little less beer for $24 why keep selling that six pack at $12-14.