This study investigates the magnetic excitations in infinite-layer PrNiO₂ films grown on different substrates, SrTiO₃ (STO) and (LaAlO₃)₀.₃(Sr₂TaAlO₆)₀.₇ (LSAT), to understand the role of strain in superconductivity. Using resonant inelastic x-ray scattering (RIXS), the researchers found that the magnon bandwidth of PrNiO₂ is only marginally affected by strain, in contrast to the enhanced superconducting transition temperature (Tc) in doped superconducting samples. This suggests that the energy scale of spin fluctuations in the parent compounds is similar under strain, while Tc in doped samples is not. The results provide insights into the electron pairing mechanism in superconducting infinite-layer nickelates, highlighting the importance of spin fluctuations in superconductivity. The study also discusses the potential impact of structural distortions and lattice fluctuations on superexchange interactions, offering a deeper understanding of the complex behavior of these materials.This study investigates the magnetic excitations in infinite-layer PrNiO₂ films grown on different substrates, SrTiO₃ (STO) and (LaAlO₃)₀.₃(Sr₂TaAlO₆)₀.₇ (LSAT), to understand the role of strain in superconductivity. Using resonant inelastic x-ray scattering (RIXS), the researchers found that the magnon bandwidth of PrNiO₂ is only marginally affected by strain, in contrast to the enhanced superconducting transition temperature (Tc) in doped superconducting samples. This suggests that the energy scale of spin fluctuations in the parent compounds is similar under strain, while Tc in doped samples is not. The results provide insights into the electron pairing mechanism in superconducting infinite-layer nickelates, highlighting the importance of spin fluctuations in superconductivity. The study also discusses the potential impact of structural distortions and lattice fluctuations on superexchange interactions, offering a deeper understanding of the complex behavior of these materials.