A study of anisotropic spheres in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e2736" altimg="si7.svg"><mml:mrow><mml:mi>f</mml:mi><mml:mrow><mml:mo>(</mml:mo><mml:mi>Q</mml:mi><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:math> gravity with quintessence field

This manuscript examines the compact stars in gravity $f (Q)$, where non-metricity $Q$ drives gravitational interactions. To achieve this goal, we consider a spherically symmetric spacetime with anisotropic fluid distribution. In particular, quintessence field is used energy-momentum tensor to explore solution of stars. addition, select three specific types stars, namely HerX-1, SAXJ1808.4-3658, and 4U1820-30. We develop equations using form $f(Q)$ as $f(Q)=Q-\alpha \gamma \left(1-\frac{1}{e^{\frac{Q}{\gamma}}}\right)$ (Q)$ gravity. Schwarzschild metric for matching conditions at boundary. Then, calculate values all relevant parameters by imposing conditions. provide detailed graphical analyses discuss parameters' physical viability, energy density, pressure, gradient anisotropy. also examine stability testing conditions, state, causality, redshift functions, mass compactness functions. Finally, find that solutions obtained are physically feasible modified gravity, it has good properties star models.