You can train just as fast or as much at a Part 61 school, there just needs to be an understanding that part of your choice for them is scheduling flexibility.
Two flights a day equals 3hrs a day.
One day off, one day where weather is unsuitable and that’s 15hrs/week for a 3-4 week PPL.
Some days start at the crack of dawn, some days two flights back to back with a 30-45min break at another airport in the evening.
You’ll have plenty of scheduling issues at larger 141 schools as stage checks are prioritized and aircraft breaking down and solo students coming back late all jeopardize the daily scheduling.

This is a dangerously misleading statement.
1500hrs even in ideal conditions without family, finances or simply life intervening takes 1.5-2 years to accomplish.
Prior to that rule…yes you could be Zero- right away regional in 4-5 months.
Ideally you should consider life changes when the economy has tanked and flightschools are bending over backwards and begging for your business.
Apparently humans are genetically predisposed with a squirrel mentality.