LinuxCNC on Raspberry Pi 5

Well that google sucks, hard.
There are no "instability issues" ever, you set it properly once and it keeps on working for years and years without issues, ever!
"steep learning curve"??? Yes of course, for someone with no prior experience, but so is tying shoes when we are young.
"compared to commercial CNC controls", i have no clue what they are comparing it to as from extensive experience i concluded the opposite, although some do come close to actually pointing issues in the right direction, some will absolutely make you take a hammer and destroy the thing.
"many users report frustration with the complexity of setting up a reliable system" Oh YES! This is absolutely true due to reasons:
1. They do not follow instructions! Read some random topics here, like setting up networking for Mesa cards, or servo tuning, most people will read and configure things and move on, but there are some that skip steps and come back complaining nothing works.
2. those who managed to set things up are not here complaining, they are making chips and using their machines, and most do not bother registering here, so google can not include those, and that is the majority of LinuxCNC users.
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In short, LinuxCNC is extremely reliable, very easy to set up for normal machines thanks to several wizards that are included with it, but there is NOTHING easy for retrofitting a 15 Ton industrial machine without prior experience in electronics, and yet, there are plenty of members here who did just that with no experience at all, they just followed instructions from very experienced and capable members of this forum.