Meetings are the viable alternative to work. Meetings that you don’t need to contribute to are even better. Take a break. Catch some zees.
What if you enjoy your work and find value in it; and the meeting is pointless bullshit that just breaks your focus?
Do whatever your want, mate. Decline the meeting?

I think OP’s screenshot is tactful and effective. It’s similar to my approach. Which starts:

“Thanks for the invitation, what’s on the agenda?”

Then I decide to accept or politely decline and ask for minutes.