Locally (rural Western Australia) we've faced the same shortage of builders relative to demand that many places have and new builds have increased in number while still falling short of demand.

Traditionally this state near the capital city has had a lot of double brick builds, more so than other parts of the world - due to a combination of the "right" soils and a long standing still expanding massive brick company (Midland Brick).

The greatest growth in "alternative" building has been in the factory built modular home area - not just dumpy dongars and demountable shipping container like homes, but multi part slide together modules that together make up a large "pre built home" - say, four large oversize truck loads each with a complete foundation (thick concrete floor) framed, walled, roofed, plumbed and wired chunk o'house that gets lowered slid and jacked in place, then all parts are pulled into together to make a seamless appearing whole.

It's a day to land, a second day to hook up to septic + water + power and drop verandahs and shading in place attached to the home.

That approach has seen a rapid increase in build time as the chunk parts are all created in large warehouse spaces with overhead crane rigs and racks of supply chain parts allowing multiple home builds to be interwoven in a pipeline that concentrates tradesmen and allows (say) an electrician to pull and plate several partial homes in a day or two.

The build quality (so far, from several I've seen) has been consistently up to code with a significant time and money cost saving to owner over other build methods.