This study investigates magnetic excitations in infinite-layer PrNiO₂ thin films grown on two different substrates, SrTiO₃ (STO) and (LaAlO₃)₀.₃(Sr₂TaAlO₆)₀.₇ (LSAT), using resonant inelastic x-ray scattering (RIXS). The results show that the magnon bandwidth of PrNiO₂ is only marginally affected by strain, in contrast to the enhancement of the superconducting transition temperature Tc in doped samples. These findings suggest that the spin excitation energy scale in the parent compounds is not directly related to Tc, unlike in cuprates. The study also reveals that the magnetic excitations in PrNiO₂ films on both substrates are similar, with only minor differences in energy levels. The results indicate that the in-plane compressive strain of -1% has a marginal influence on the superexchange coupling J. The study provides important insights into the understanding of superconductivity in infinite-layer nickelates, highlighting the role of spin fluctuations in the pairing mechanism. The findings suggest that the superconductivity in infinite-layer nickelates is unconventional, and that the magnetic excitations are sensitive to strain. The study also shows that the superconducting transition temperature can be enhanced by strain engineering in La₂₋ₓSrₓCuO₄ thin films. The results suggest that the superconductivity in infinite-layer nickelates is driven by spin fluctuations, and that the pairing mechanism is different from that in cuprates. The study provides a framework for understanding the role of strain in superconductivity in infinite-layer nickelates.This study investigates magnetic excitations in infinite-layer PrNiO₂ thin films grown on two different substrates, SrTiO₃ (STO) and (LaAlO₃)₀.₃(Sr₂TaAlO₆)₀.₇ (LSAT), using resonant inelastic x-ray scattering (RIXS). The results show that the magnon bandwidth of PrNiO₂ is only marginally affected by strain, in contrast to the enhancement of the superconducting transition temperature Tc in doped samples. These findings suggest that the spin excitation energy scale in the parent compounds is not directly related to Tc, unlike in cuprates. The study also reveals that the magnetic excitations in PrNiO₂ films on both substrates are similar, with only minor differences in energy levels. The results indicate that the in-plane compressive strain of -1% has a marginal influence on the superexchange coupling J. The study provides important insights into the understanding of superconductivity in infinite-layer nickelates, highlighting the role of spin fluctuations in the pairing mechanism. The findings suggest that the superconductivity in infinite-layer nickelates is unconventional, and that the magnetic excitations are sensitive to strain. The study also shows that the superconducting transition temperature can be enhanced by strain engineering in La₂₋ₓSrₓCuO₄ thin films. The results suggest that the superconductivity in infinite-layer nickelates is driven by spin fluctuations, and that the pairing mechanism is different from that in cuprates. The study provides a framework for understanding the role of strain in superconductivity in infinite-layer nickelates.