NHS Covid-19 app won't work unless I update Google Play Services

Yes.
Samsung Galaxy S5 (klte) with aPixelExperience 9.0 customROM - incl. module venue check-in.



No.
The new UK NHS Covid-19 app version 3.7.2 (85).85 from 14.10.2020 works for me with microG Services Core version 0.2.12.203315 on @harvery186’s Q-GSI ROM, …

uk_nhs_covid-19-oct20

… but not the module ‘venue check-in’. This is probably very device dependent …