... a French artisan baker on TV a while back used this golden rule:
ambient temperature+flour temperature+water temp=54C
...
Personally haven't gone so far as to be precise with temp but do use cool water in summer and warm water in winter.
Commercial baking (even commercial artisan) and domestic baking are different games.
In a production environment, especially an 'artisan' one, the idea is to interleave multiple activities - so that the baker (almost) always has a job to do but NEVER has to be dealing with different things simultaneously demanding undivided attention.
At its simplest, you don't want two products coming ready for the oven simultaneously when the oven will only hold one batch (or those products require different oven temperatures).
The really tricky bit of commercial artisan baking is this scheduling.
And that means controlling the rise time ... which means controlling the fermentation temperature, by in turn compensating for the ambient and materials temperatures, which leads to rules of thumb like this (or investing in a temperature controlled 'proofer' - hint - a honey 'warming cabinet' could give the right sort of temperature).
But at home you should not have that scheduling problem.
So you can easily "give it another quarter of an hour" if you think it needs to rise a bit more.
Similarly, many commercial bakers (particularly American ones), have an excessive fondness for "fresh" yeast. This is an industrially-produced product (invented in Victorian times) with an awkwardly short shelf life - which isn't a problem with daily deliveries, but is for occasional home baking. And it does NOT freeze well.
"Active dried" yeast was invented as a bulletproof product for the US military in the 1940's. It has a very long shelf life, but awful gastronomic qualities (unless you like the taste of dead yeast).
"Instant mix" yeasts (to be mixed with the dry flour) are best for the home baker. Stores well. No fuss. Good clean yeast.
Some are formulated specially for bread machine use -- with lots and lots of additives! But some aren't, Doves Farm is one good example. Check the label!
"Pleasantly warm" is all the temperature you require. (Central heating radiators
can get too hot.) And you can make bloody good bread by allowing it to ferment overnight (10 hours or so) somewhere cool (10C?). Warmer is not better!
To prevent dough drying out ("skinning") while rising, you'll see all sorts of advice, from covering a bowl with a damp dishtowel to using oiled clingfilm. A cheapo 5 litre lidded tupperware tub is a better-performing, simple and reusable solution.