Display Screen or a Portion Thereof with a Graphical User Interface

This application is related to the following commonly owned co-pending patent applications: U.S. application Ser. No. 18/748,834, entitled “Selective Tile Accumulation Sequences and Related Selective Accumulated Tile Use Sequences,” U.S. application Ser. No. 18/748,907, entitled “Selective Tile Accumulation Sequences and Related Selective Accumulated Tile Use Sequences With Bypass Features,” U.S. application Ser. No. 18/748,960, entitled “Hand and/or Run Selection Sequences for Selective Tile Accumulation Sequences and Related Selective Accumulated Tile Use Sequences,” U.S. application Ser. No. 18/748,985, entitled: “Selective Dice Type Tile Accumulation Sequences and Related Selective Accumulated Dice Type Tile Use Sequences,” and U.S. application Ser. No. 29/948,344, entitled: “Display Screen or Portion Thereof With a Graphical User Interface,”.

FIG. 1 is a front view of a display screen or a portion thereof with a graphical user interface showing a first embodiment of our new design.

FIG. 2 is a front view of a display screen or a portion thereof with a graphical user interface showing a second embodiment of our new design.

FIG. 3 is a front view of a display screen or a portion thereof with a graphical user interface showing a third embodiment of our new design; and,

FIG. 4 is a front view of a display screen or a portion thereof with a graphical user interface showing a fourth embodiment of our new design.

The outer perimeter broken lines in the drawing show a display screen or a portion thereof and forms no part of the claimed design.