Details can be verified e.g. on the stacks on chain dashboard: https://stacksonchain.com/dashboards/Friedger-Pool/21
First, the total stacking rewards of 1.05152455 BTC were wrapped to 1.04874993 xbtc rewards including a 0.2% wrapping fee by wrapped.com:
Second, the 1.04875000 xBTC rewards were swapped to 53,536.106783 STX on alex go. That is a rate of 1959 sats/stx:
17 members received rewards in xBTC (total of 0.00580174 xBTC), 1530 members received rewards in STX (total of 53,239.942129 STX).