North and East will pass.

South will probably bid 1NT with 12-14 and a balanced hand. It is 5332 but values in all suits. Here is Alan Robson on balanced hands https://www.andrewrobson.co.uk/pdfs/newsletter2.html

Over 1NT West will double showing 15+ for penalties.

North will think 1NT will make 8 HCPs +12 so will pass.

East will be worried with only 1HCP that1NT will make so will bid. Either a natural 2♦ or using whatever defence system you normally used over an undoubled 1NT e.g. Landy.

Over 2♦ South will pass.

West might invite with 2NT which East will pass.

Alternative is South opens with 1♥  rather than bidding 1NT

West with a super strong hand cannot bid 2NT which is the unusual Notrump

He has to double and then rebid lowest NT to show18-20. 1NT over 1♥ would show 15-18.

Over the double North may bid 1♠ or 2♣ to show values or pass.

Over the pass East will bid 2♦ and West will bid 2NT which will be passed out.

2N by E/W should be -2 and -100. Those who bid to 2♦ - it makes for a top.