IIRC, Trevanion's post addresses these queries in the link.
He and others here, have much much more knowledge than myself regarding tablesaws and circular saws TBH.
Some hand held circular saws, like all well designed tablesaws, have a riving knife so a blade must be matched to this if so,
or vice versa should one have various thickness RK's for one.
What I can mention is for a compound mitre saw or radial arm saw, these
must have a negative rake (teeth leaning away rather than towards) because the timber can climb onto the blade, and off the bed of the machine, which can be extremely dangerous.
I try and not use my TS for a many reasons,
not being in the best of form for working with a dangerous machine (look up the safety stats for the USA, used to be around sixty thousand reported accidents a year involving circular saws,
seems like less these days due to the sawstop tech, but I may be wrong about my impression of this, could be the pandemic which put a halt on construction?
Still working on my bandsaw, and not got round to souping up my TS,
going to do quite a bit of work to it, hopefully soon enough,
i.e outfeed table needs sorting, fence could be improved,
Keeping my eye out for some lexan to make proper crown guard,
shaw guards for trench cuts (I reclaim timbers and need to do this)
Still only have 13a plugs, so no extraction can be used yet, (wanting to build a decent extractor which would be much better than something off the shelf when I can afford it)
The timber I work with is toxic/irritant, and a sensitizer
and likely more reasons than this which doesn't come to mind.
If you are taking advice from anyone, I'd make sure that you get UK advice i.e 450mm pushstick
s,
and not those little shoe types which is common to see on the utubes,
and if strictly UK stuff, then hopefully not someone who's using some dangerous toy (that may only be a temporary deal) which IMO doesn't make one keen to go the whole hog regarding every single thing which could be done, but likely won't be.
If advice is taken from someone with a sawstop, then you'd better get one too,
though it's not safe practice either, as a piece of timber shot back at the user can still amputate limbs, (hence the decently long 450mm pushsticks)
which might seem awkward on a machine which has the blade so close to the user.
Roy Sutton would be one video to watch,
Steve Maskery has quite a lot of videos also, too many to link really,
here's one which is one way to skin the cat
Have a look at this compilation of danger, most of it's a bit ridiculous, but might be insightful
http://www.thewoodhaven2.co.uk/viewtopic.php?f=30&t=7161&hilit=dangerous
I think that's enough ranting from myself, hopefully those who've been a bit brave in the past, gets the impression of what could happen with improper use.
All the best
Tom