The 2022 highway code says police escorts must now give way to cyclists. Catherine did not look amused. See below for timestamps for the rest of the video.

0:00 Special Escort Group bikes
0:13 Police escort of the Duke & Duchess of Cambridge (William & Katherine Windsor Mountbatten)
0:48 Police escort of the Prime Minister of Latvia (Arturs Krišjānis Kariņš)
1:20 Metropolitan Police EOD (bomb squad) units
1:42 2x Metropolitan Police dog units
1:55 London Fire Brigade pump ladder (G331 Kensington)