You can use PPP. Purchasing power parities (PPPs) are the rates of currency conversion that try to equalise the purchasing power of different currencies, by eliminating the differences in price levels between countries.
A country's gross domestic product (GDP) at purchasing power parity (PPP) per capita is the PPP value of all final goods and services produced within an economy in a given year, divided by the average (or mid-year) population for the same year.
France fares better than UK in this one.
data.worldbank.org/indicator/NY.GDP.PCAP.PP.CD?most_recent_value_desc=true
Country Most Recent Year Most Recent Value
Luxembourg 2021 134,753.8
Singapore 2021 116,486.5
Ireland 2021 106,455.8
Qatar 2021 93,521.4
Bermuda 2021 85,192.3
Norway 2021 79,201.2
Switzerland 2021 77,324.1
Macao SAR, China 2021 73,802.2
Cayman Islands 2020 72,481.0
United States 2021 69,287.5
United Arab Emirates 2020 66,766.1
Brunei Darussalam 2021 66,619.9
Hong Kong SAR, China 2021 65,972.6
Denmark 2021 64,651.2
Netherlands 2021 63,766.9
San Marino 2020 59,571.9
Sweden 2021 59,324.0
Belgium 2021 58,930.9
Austria 2021 58,427.5
Germany 2021 57,927.6
Iceland 2021 57,646.4
Australia 2021 55,807.4
Finland 2021 55,006.6
Canada 2021 52,085.0
France 2021 50,728.7
United Kingdom 2021 49,675.3
Saudi Arabia 2021 49,551.3
Malta 2021 47,714.5
Kuwait 2020 47,303.1
46,419.5
Italy 2021 45,936.0
Bahrain 2021 45,411.1
Czechia 2021 44,260.9
Israel 2021 43,721.6
Slovenia 2021 43,624.7
Japan 2021 42,940.4
Lithuania 2021 42,665.3
Cyprus 2021 42,556.1
Estonia 2021 42,191.5
Spain 2021 40,775.3