There are a lot of New laptops that are leggie too.
Almost all the manufacturers (Dell, HP, Lenove,Acer etc) have three tiers of Laptops.
The $250 - $400 that are based on very slow chipset (mainly AMD) and slow HDs or poor SSDs.
These laptop are slow No matter what you do.
The $450 - $600 that are based on i5-i7 and do well on every thing but Heavy Graphics.
The $700 and above that are Gaming Commuters and mostly work close to Desktop computers level.
Many times I came across Family and friends complaining like the OP while having sec. level and above Laptops.
Solution - Run Program like cCleaner and clean up the Internet and other caches.
Many time this clean delete GBs of space and useless stuff that was few years old.
CCleaner has also a Tool Menu with StartUp view. Look what run in Startup. Since cCleaner give you an option to just Disable Apps that start for no real functional reason, you can Disable a lot of the Junk and then if something that you need does not work, you can run again cCleaner and Re-enable it.
Then Run Win11/10 own Disk Cleaner to get rid of the Updates and install Junk.
Computer is Not a fashion industry, it based in Technology and most user under 40 years old got Brain WEashed by TV/Online Commercials and they do not get it.