I got into the hobby in the mid 1970's, so yes, for many, it's changed a lot, much easier to find info, but now you have to wade through it to find what applies.
Water changes however, have never really changed. They still do the same things today as they did back then.Good advice that goes back to the 1970's for marine and FW tanks, breeders, aquaculture etc.
Still, many argue against it.
Some assume that they have to let the water age and add dechlor prior also, but we never did that at the LFs I worked at and I use the same water change method today as I did way back then, a 3/4" garden hose hooked up the shower, add the right amount of dechlor in and turn the water on to refill, the same refill is the also the drain hose as well.
Since the water is still there, I do not even need to start the siphon, it does it automatically.
I can drain and refill 5 aquariums for a total of 460 Gallons, do 60-80% in less than 2 hours.
I trim and clean things while the tank refills/drains.
Yes, 2 hours a week is work, but it's not hard work really doing the water change and keeps the floors dry. the work is really trimming, cleaning filters, stuff you cannot get away from with other dosing methods. Buckets are for the birds. I use them for trimming waste and replant cutting barrels etc. For small tanks, less than 20 Gal, buckets are fine, takes all of 5 minutes to do a 50-60% weekly water change on such tanks.
If 5 minutes is too much, find another hobby.
Regards,
Tom barr