You're paid to do what's outlined in your contract nothing more.
Headphones on. Crack on with the job at hand. That's exactly the way to go. Having to be distracted by annoying co-workers who don't understand that, is a benefit of WFH for sure.
Who wants to be constantly interrupted by random folk when you're likely working to a deadline?
That's because when you're suddenly distracted by "just a quick question..." It takes you an age to unwind the stack and try to realign back to what you were doing.
That 5 minute 'quick question' becomes 15-30 minutes of getting back into the zone. Send an email, an IM, post the question on the slack channel for anyone to answer.
Just. Don't. Disturb. Me.
You think it's subjective. "My and other people's opinion", who? Really? Or are they just nodding and saying that you're right because it's actually impossible to talk any sense into you?
Take a moment and meditate how toxic the behaviour you described above actually is to the real needs of the business, and not your feelings.
The world has moved on. Maybe you should too?