relevant

This BBC article is a promotion of a radio programme. I like such articles because I could find good radio programmes.
Moreover, written summaries and quotes from radio programmes are helpful for listening to colloquial phrases and expression.

Little Chefs: What happened to roadside diner chain
https://www.bbc.com/news/business-68796980

en route - family visits en route to Bournemouth
end up doing something - ended up buying the restaurant chain
spot an opportunity
prefabricated building accent pref-A-bricated
conglomerate - pronunciation
go from strength to strength
on the go - on-the-go food outlets
go bust
revamp
secret sauce
dizzy heights
be toast - [Collins]If someone is toast, you mean that they are certain to be defeated or destroyed.

relevant - it can be used for the replacement for "important" which I repeat a lot
[quote] I think with those sorts of heritage brands, you still need to find ways of keeping them fresh and relevant. [unquote]
[quote]Ultimately it had failed to remain relevant to enough customers to survive in the face of new competition. [unquote]

[quote] "it just wasn't quite offering what people were after" [unquote]
I cannot talk like this...

I'd never been to Little Chefs, but I can understand the fond memories and the nostalgia for childhoods.