You’d be amazed at what crossing cutting your lawn, without picking up clippings, does for it.
First cut go one direction, do not pick up clippings
Second cut go 90 degrees against the first cut direction. Ya gotta make two passes.
On second cut those clippings get shredded and drop to the base of the plant/ground, rebuilding a very good soil.
After about a 3-5 mowings you’ll notice a difference that resembles carpet, the new soil will even smell healthy. Many weeds grow where grass can’t, usually dead soil, healthier grass less weeds
Side acre lot to fix it I let the existing grass seensgrow and seed itself before slowly cutting it down to size. If that tyoe of grass grows there thats the seed I want.
I learned this in my dads yard his/our yard in Home & Garden magazine in the early 80s
Edit: do not yse lief blowers in your lawn, use a rake. You’re blowing away nutrients/top soil