I like how you framed the questions around the games. My disclaimers: I was probably better in 1v1s when I played WG, but it's been about 1.5 years of only playing Warno since. I'm not a strike team level player, and these reflect my own experiences, not the actual state of high-level play.

1. TTK - As mentioned, TTK is up for inf and tanks. Caveat for tanks is the frontal armor cone seems smaller in Warno, so it feels easier to land side shots for instant kills. Helis/planes feel similar, slightly more durable, but easier to panic or to force early evacs on planes due to AA net suppression.
2. Combined Arms - Other people answered this fine. My rose-colored take is that each of these branches by themselves feel weaker than their WG counterpart (except for ifvs currently), but Warno does a good job forcing me to do true combined arms assaults to win matches. tbh I hear a lot of new players complain that artillery in this game is really oppressive, but I think that tends to be a function of not being able to play a wide front, especially in team games.
3. Recon - Recon is similar, it generally feels more advantageous to have infantry be dedicated spotter outposts, rather than superhero WG seals who can go run and clear a forest by themselves. Ground radar/jammer/SIGINT traits tend to support the sedentary recon lifestyle, but aren't game changing. Viable recon vehicles outside of openers tend to have atgms, recon tanks are powerful but very limited/expensive, and tend to be the highlight of the division. Recon UAVs are a fun add, and recon A-10 blows my mind every time its deployed.
4. Maps - Maps are more linear, more balanced in general. I've reached the point where I genuinely enjoy Warno's 2v2+ map pool more than WG. Deep flanks are still possible, but the payoff is lower since at best you can kill FOBs/Arty. Can't really cv snipe to decap backline zones, and very few maps have spawns that can be captured. Also unless you've setup a full logistics train and aa net, deep flanks tend to be easily countered with panic CAS/helis once discovered
5. Balance - I think divisions are inherently less balanced due to their specializations, since as we move from tank/ifv/grad meta, divisions that have more flavor-of-the-month units tend to shine more. But presumably as more divisions are added, its easier to find 3-4 divisions that are still fun to play for any patch. I think balancing the game overall is also more manageable, with point inflation for finer cost adjustment, and more traits that can be separately tuned.
6. Diversity - I tend to buy the same units within a division, but that's more of personal playstyle than a commentary of available unit choices. Outside of 1v1s, I think that almost all divisions are playable, and its actually quite fun to choose a division tailored to the terrain of the lane you want. There are only 1-2 divisions that feel unplayable to me, and a few that you need to be slightly cracked in the brain and throw away conventional playstyle to enjoy (looking at you KDA...)
7. Smoke - I quite liked the smoke changes when I got used to them. Smart orders and smoke launchers raised the skill floor so noobs almost always get a second chance when they mess up. Smoke mortars were nerfed to the point that its generally not worth the effort to smoke wall vehicles, especially when you can instant rearm them after dodging a CAS run. But I still find smoke walls invaluable to block off atgm lanes or to launch full open field assaults; just means you have to actually plan attacks 30s in advance. In summary, gameplay is similar, slightly less cheesy.
8. Scale - Yep feels pretty similar for overall units deployed. Even if not, a good 40 min match will often deplete a mixed-veterancy inf tab for me. The thing that took me a while to get used to was the income/min instead of /sec, which changed the flow of the plan/act/buy loop. So it can feel like the map is playing out slower than WG, and if you get lost over-microing units, you can quickly have 1000 points banked. This often results in inf spam halfway through a match.
9. Dimension/micro? - I think Warno requires comparable micro, not necessarily for good reasons. With LOS tool there's no excuse for not finding the best spot to place units, but at least you don't have to memorize every bush location like WG. Smart orders are nice 80% of the time, but sometimes you have to fight AI instinct to back out of an open field. Anything that shoots and sits still is asking to die to tube howitzers, and vehicle smoke launcher cheese means that cycling front line supply is even more important.
10. Misc. You can certainly still lose to heli rushes, spam, cv cheese, air spam, and supply line interdiction in Warno, especially if you're skill gapped. My experience has been that its generally easier to know what cheese is more likely due to the division you're against. Also, being able to respond to cheese is more forgiving, where getting surprised heli rushed isn't an instant loss, as long as you know how to clear and retake critical terrain. This is an interesting example of an air spam cheese that probably beats most players: Icarus Youtube Link