If you are looking for definitive diagnosis of this damage, the only way to find out is to bring it to a shop and have them look at it. From your vague description it should be done right away because it may not be safe for you or others on the road with you. Any changes in drivability specifically in the front suspension and especially resulting from any kind of collision is potentially dangerous.
The damage I’ve repaired when a vehicle strikes a curb are,bent/cracked wheel, damaged wheel bearing, bent lower control arm, bent tie rod, bent sub-frame, bent strut, broken sway bar end link, damaged steering rack, and a combination of any of the above.
There are experienced mechanics here who could make an educated guess without a hands and eyes on inspection based on normal wear and tear. Any collision can result in completely abnormal damage. There are also members who had a similar accident and symptoms with diagnosis and repair performed at a dealership or independent shop who could relate what was actually damaged and their repair costs.
Any and all guesses we make will no doubt require manual intervention. So find out what needs replacing by someone who can get hand and eyes on it and tell you what happened. Something was damaged for certain because the light feeling is from being “tow in” meaning your left front wheel is now pigeon toed so your steering gets lighter from basically plowing down the road instead of rolling, so damage has been done.
You can have lower control arm damage, spindle or bearing damage, tie rod bending etc… Again, all need manual on site intervention to diagnose and repair.
It does not matter what anyone thinks it will cost . Your location , the shop you use , the hidden damage and the difficulty of finding parts for a 19 year old vehicle . You are just going to have to get an estimate and then decide if you want to put that amount of money in it.
Also most of the people here are US based and you are not so that also makes guessing prices difficult.
You can safely wager that one or more items are damaged. Putting the car on an alignment rack may aid in any diagnosis. Without hands-on it’s impossible to say what all is damaged or even how much it will cost to repair as repair costs can vary a lot based on locale.