actually it isn't. The alternatives are
1. CATAR: catapult take-off, Arrested landing
2. STOVL: Short take off, Vertical landing
3. STOBAR: Short takeoff, but arrested landing
US carriers, Charles de Gaulle, Sao Paulo are CATAR
UK carriers, Princep de Asturias, Guseppii Garibaldi, Chakri, Viraat are STOVL
Kuznetsov is STOBAR
but it's not a function of deck size. The new British Future Aircraft Carrier will be the same size as the Kuznetsov, bigger than CdG, Sao Paulo, but will be STOVL.
Which is actually a better system than STOBAR, but in practice is restricted to a single aircraft type,(Harrier now, JSF in future), whereas STOBAR can operate any high performance jet a CATAR can, at slighly reduced take-off weight (maybe 80% of max Catapult weight)
Also the Russians are keeping the Kuznetsov (Midway, UK CVF sized), what they have sold to india is the older STOVL Gorshkov (Charles de Gaulle sized),
which will be converted to STOBAR.
Also a gleam in the Indain navy's eye: the STOBAR ADS