There are A LOT of threads here that go into WR in extensive detail.
What it comes down to though is very individual circumstances, goals, and mitigating factors.
For some 4% is far too risky and for others it's far too conservative. So yes, 5% is perfectly fine for someone who has examined their situation closely and understands the trade offs involved in a 5% WR.
I've posited many, many, many times that the WR is almost irrelevant compared to how someone defines their "annual spend" number in the first place.
If one person's annual spend number is based on very bare bones, very lean numbers that depend on life going relatively smoothly while living in a geoarbitrage area like Malaysia forever, and they are planning on living 100% on their returns...? Yeah, 4% may be extremely risky.
If another person bases their annual spend number on a budget where 50% of it is reserved for travel, plus they're not including the value of their expensive paid off home, and half of their stache is a rock solid pension that more than covers their lean expenses, and they're in a couple where one or both could very easily pick up high paying part time work, and they're naturally cautious, so will probably never actually spend their full estimated annual budget, especially if the markets are down, plus they both have massive life insurance policies for some reason...?
Yeah, 4% is probably extremely conservative.
Unless you are looking to retire soon, then don't worry about it quite yet and spend some time reading and asking questions in order to get comfortable with the various factors that you may not have thought to consider.
For now, consider 4% an excellent starting point.
ETA: edited for a really weird previous editing error that resulted in Malaysia being spelled so, so wrong