First thing is to mention one has to be very careful what is deleted.
Here is some information on the ' other ' section.
Some people use Google Files to help clear clutter.
Other options are available.
I use the optimisation tool in the phone's settings to help clear up things and I manually delete unused items like...
Also I use > Clear Cache Files from the phone's System Partition Section > https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/ You may need to insert your earphones or hook upto a powered On Laptop to access the Clear Partition Section. This may help with lag or stutters as this clears the phone of old/unused or broken cache files.There is also a Repair Apps option in the Menu System too.
You can go into Settings and Apps and disable and or force stop apps you don't use but this won't remove them.
One good tip is to try and future proof your purchase by purchasing / choosing the largest internal storage capacity one can afford.
I hope that helps.
Daily Driver > Samsung Galaxy s²² Ultra 256Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I have no affiliation with Samsung.