You can get a one-off payment of £200 per person when you arrive in the UK if you have a Homes for Ukraine visa.

ENG:

https://www.nidirect.gov.uk/articles/ukrainian-cash-support-scheme

UKR:

https://www-nidirect-gov-uk.translate.goog/articles/ukrainian-cash-support-scheme?_x_tr_sl=auto&_x_tr_tl=uk&_x_tr_hl=en