Above, in black the rate differential UK 10-Year Bond Yield-US 10-Year Bond Yield, in orange Gbp-Usd. The two charts should move in tandem, but this is not always the case. It is also true that this is not a normal period, Covid-19 has been negatively affecting the world economy for a year. However, the two charts will move back in tandem, sooner or later.
Below, the Gbp-Usd daily chart with the first sensitive levels (1.39500, 1.36750, 1.33600, 1.31000, 1.29500).