I replace the filter every other service. Lexus calls for 10K OCIs; I do 5K. Remember, they are idiots. The MityVac is a great tool, but does not work for every engine. Last time, I did the "how much oil is left" test. Not much...
Check out my "Post your latest oil change", May 11, 2021, post #14,929, which was the prior GS service.
The MityVac comes with 2 dip stick tubes; I gave up on the larger one. You can fish around better. Make sure the oil is at least warm.
Use the dip stick to estimate how far to stab the extract tube.
Once it starts to suck air, I fish the tube around to suck a little more out. It works pretty well, IMO.
The nice thing is, you reverse a switch and pump it out to your recycle containers.
As far as time, it is far faster than ramps, floor jacks, jack stands, oil drain pans, dirty clothes to crawl around on the ground, SPILLAGE, cat litter, rags, 14mm wrench for Toyletta drain plug, 20 cent warsher, Snap On torque wrench, etc.
5 to 10 minutes. Not bad.
I suggest giving it a try. And post your results.