It's on you to figure out how to do that without making it weird.
And, my experience doesn't seem to indicate that meeting interesting people in bars only happens in certain countries.
That said, I didn't necessarily go to the bars or nightclubs purely with the objective of dating. I went there to have fun, dance and meet people (men and women).
There are also quality bars.
The Hollywood scene where girls hang around alone by the bar waiting for guys to hit on them doesn't exist here.
I don't know that it exists anywhere anymore. It can be dangerous for a woman to out drinking alone.
But ladies do go out in groups. As a guy you just have to be nice and chat up the group and don't get hyper focused on any one person. None of them are probably going to drop everything and go home with you that night. But you can often get a phone number (or two) and go on a real date from that.
If you want to go to a bar and meet other people, go to one with a pool table. Hitting on women is much smoother when you meet their girlfriend's boyfriend first, and better tolerated whether she's interested or not.
Sure, it can happen that you meet a compatible partner in a bar/club, but as a dating strategy is has a very poor ROI. You're better off with hobbies or dating apps.
YMMV but that's the case in my area in Europe. Maybe the US has a different culture.