Standing Repo Facility (SRF) is a policy rate set by the Fed, according to the target rate. so unless the target rate is decreased, SRF rate is unlikely to be reduced this situation is putting pressure on the Fed to decrease interest rates and start QE soon
the funding could also come from Fedβs facilities, like the SRF or OMO however, current SRF rate is 4.5%, which is above the yield on T-bills, and Fed is still officially in QT, so no large-scale, longer-term liquidity injections via open market operations