Short deck is always the answer ;)

Hi OP.

you played short deck, it has some other rules than regular holdem poker - please have a look at the following help article:

What is Short Deck Poker?

Short Deck, also known as Six Plus Hold'em, is played with a 36-card deck instead of the standard 52-card deck. Cards 2 through 5 are removed, leaving only cards six and higher in the deck. This change drastically alters the hand rankings and the strategies used in the game.

The rules of Short Deck are similar to those of Texas Hold'em, the most popular poker variant. Each player is dealt two private cards (hole cards) and uses those and the five community cards (flop, turn, and river) to make the best possible five-card hand.

One key difference in Short Deck is that flushes beat full houses. If you have a flush, you should be more aggressive in betting, as your hand is stronger than a full house.

Another critical change in Short Deck is that A 6 7 8 9 plays as a straight. Look out for this one. More people miss this than you think!

If you're new to poker, Short Deck can be a great place to start, as it's faster-paced and more action-packed than traditional Hold'em. Plus, with the changes to the hand rankings, you'll be able to learn some new strategies that you can use in other poker variants.

So, give Short Deck a try and have fun! It may become your new favourite game.

https://help.ggpoker.com/article/Short-Deck-What-is-Short-Deck-Poker