I usually agree with this feedback even if some points are less important to me (i.e 3).
Just a though about fire emblem, which is another tactical TB game I love...
You can speed up movement so combats are faster that's right, and that's cool.
But something else you have in FE is not more/less ennemies than in BG3... It's an increased party size...
This also contribute to
1) faster combats
2) more playing, less watching. Especially in games in which you only have 1 action/turn.
Is FE (xcom, wasteland,...) easier than BG3 ? Hell no.
I'd assume larger party sizes would only make combats slower. You'd need more enemies to compensate for the larger group so the proportions wouldn't change it's just each individual combat encounter would take longer. Not saying I wouldn't like a larger party size but I think it's something that be more practical if the pace was improved rather than something that would improve the pace.
Does Xcom, FE or Wasteland have more ennemies per combats ? No. Are these game easier ? Still no.
Increase the number of ennemies would be a bad solution, I agree with you.
This probably depends on the player. I found it much less tedious to solo the fights, having a full group made the already painfully slow combats to be even worse.
I agree, but that's a bandage possible because the difficulty is completely broken.
Playing with 5-6 characters is far more enjoyable because it totally solve the speed issue, leading to faster combats with more playing and less watching. You should try.
Of course combats in their actual design are easier...
But combats are easy without any companions^^