Many meetings are unnecessary. Many meetings are poorly structured. Many meetings don’t need to be meetings.
Stop blindly accepting every meeting invitation for fear of offending the organiser.
Instead, ask the organiser what the purpose of the meeting is. What are they hoping to achieve by gathering everyone together?
Once you know this, decide whether it’s worth you attending or not.
If a colleague in your team is already attending, it may be better to do something else.
You can (politely) say no to meeting invitations.