Found this:
Estimates from the Office of National Statistics suggest that total net migration was 504,000 in the year ending June 2022. This was substantially above pre-pandemic estimates of between 300,000 and 400,000 (depending on which measure is used)
The increase in overall net migration was driven by non-EU migration. Non-EU migration to the UK increased during the 2010s but rose particularly sharply after the pandemic. Meanwhile, EU net migration fell from 2016 onwards and remained low in the early 2020s (Figure 3).
Visa data give a more detailed picture of the reasons for non-EU migration patterns. Visa data overstate long-term immigration because not all people who receive visas actually move to the UK, and many come for just a few weeks or months and are not long-term migrants. Nonetheless, they provide an accurate indication of overall trends over time and show that three main factors drove recent increases in non-EU migration (F
“Bespoke humanitarian routes”. The largest single factor explaining the increase in visas granted to non-EU citizens from 2019 to the year ending June 2022 was the introduction of visa routes for Ukrainians and Hong Kong British Nationals (Overseas) status holders. Together these two routes contributed 45% of the 467,000 increase during this period (excluding visitors and short-term study). These routes are part of the ‘other’ category in Figure 6.
International students accounted for a further 39% of the increase. The UK has an explicit strategy of increasing and diversifying foreign student recruitment, and it is also plausible that the reintroduction of post-study work rights post-Brexit has made the UK more attractive to international students.
Skilled workers: 23% of the increase in visa grants from 2019 to the year ending June 2022 resulted from work visas—particularly skilled workers. Health and care was the main industry driving the growth. The increase in skilled workers is not solely the result of the post-Brexit immigration system, but also higher demand for workers who were already eligible for visas under the old system, such as doctors and nurses.