If what this and various other pollsters have found is accurate, Republicans would not only lose seats in the Senate but also fail to flip the House and lose a few governor's mansions, doing much worse than in 2020 and coming close to their absymal 2018 performance, i.e. this election would constitute the most dramatic midterm election underperformance of the opposing party since the FDR era.
Looking forward to history being written this November and a historic vindication of the polling industry.
It's hardly possible to estimate how accurate polls will be in the end. The polls conducted in October will be way more important, and they can change. I think they will, since the margins are off by various degrees.