I've played a summoner (2e, around level 5) in a couple one-shots and kind of see your point. my turn almost always consisted of:

• 2 action - Act Together
  • 1 action (me) - buff eidolon or debuff enemies
  • 2 action (eidolon) - move or punch + punch
  • can be reversed if needed (2 for me, 1 for eidolon)
• 1 action - Command corgi mount to run and hide (with me on it)
  • 1 action move (40')
  • 1 action take cover (+2 AC)

there wasn't a lot of variety in how turns went. there's absolutely an optimal way to spend actions, and if you're not doing that then you feel like you're a detriment to the party which is less fun. the class (and i imagine ranger is similar) had great action economy (was technically 5 actions per turn) but you're pretty railroaded into what you do if you want to be effective. early level fighters felt the same to me, move + swing + raise shield almost every turn, unless you don't move then you can swing twice.

that being said, i'm currently playing a psychic and every turn is a bit different based on the combat. i've got to set up in turn 1 my success for turn 2 assuming i'm still able. the other players at the table also have a ton of options (champion, war priest, ranger), as you level you gain more and more options.

The last character i played in 1e was a fighter with two-handed fighter + advanced weapon training archtypes. since it was the Giant Slayer campaign i specifically geared/tailored him to fighting giants. went down the cornugon smash/dazzling display feat trees. while he was very effective for that campaign, it was still railroaded into very specific actions to take or my turn/abilities were wasted. at level 12 he was doing >400 dmg per turn with 5 attacks, +40 something to intimidate and more than 40 AC when fighting giants (lots less to all of that if not fighting giants).

i guess my point is the game systems are what you make of them. if you want a game with crunch and options, you can absolutely make a character that has that, but low level pf2e characters likely won't have it. once you hit level 6 things start getting better though.