Try posting in the Appliance forum. GL

Not sure where all these comments are coming from, but I thought I would just add my opinion to the mix. You will want to consult with the manufacture of your blower what their limits are regarding length of the duct for a given diameter (in your case 10"). The manufacture will give you a length, which should be representative of what kind of head losses that blower is capable of working against to meet it's rated flow capacity. Most quality blowers I've see on the market will be rated at least around 50 feet of 10" duct. Looks like your setup, with 3 90 degree bends, and 19 feet of straight ducting, sits right around 50 feet. My nonprofessional opinion is you are fine.

Differential means the difference between the outside temperature and the temperature you want the MUA to be (warmer or colder than outside). CFM means actual hood CFM, and the actual hood CFM will never exceed that provided by all the sources of MUA CFM available at the kitchen. If the differential pressure is zero, then one has perfect MUA (pressure balance) and the hood will only be "gagged" by its own baffles, transitions, and ducting. The achieved indoor-outdoor differential pressure won't generally be zero, but it can be kept modest relative to changes on the fan curve. Aim for 90 hood CFM per square foot of hood intake aperture. This should provide complete containment for most cooking for captured plumes using residential hoods with baffles. (Plumes are initially captured if the hood aperture overlaps them.) So, for a desired/required 800 CFM, say, one finds 800 on the abscissa and goes up to a differential temperature curve representative of an outdoor and indoor temperature difference, and thence left to the ordinate where the BTU/hr needed is listed, based on the specific heat of air and the mass of air being moved at that CFM. BTU/hr has a counterpart watts value for electric heating, and also a tons of air conditioning value if one intends to cool. Conversion factors may be found by use of an Internet search engine.

What climate are you in? Rooftop blowers can face increased reliability and maintenance in many environments. I'd suggest inline duct for most applications. More: https://bamasotan.us/range-exhaust-hood-faq/