Plenty of warm/hot start threads just picked this one to add my experience for those reading for solutions.
reading the various threads pointed to the battery being a good candidate due to its age.
50k 2008 1.9 original Varta battery the annual checks have show cranking amps dropping off for the last 4 years.
Not used much since March(lockdown) dropped the ctek on for some longer periods of non use.
getting the warm start issue when started using it again, battery check showed it had dropped to 350A(June last year 390A) voltage OK 12.3v
It sounded like it was cranking OK but nothing, which checks with the no fuel cut off.
Swapped in a Varta e44 and that seems to have fixed the issue for the few runs done, hopefully none of the more expensive faults kick in.
This winter would have probably killed the old battery anyway, surprised it lasted this long.