Different people have different ideas. If we buy the high quality spacers and install them correctly, then there is no problem at all. I had BONOSS wheel spacers 20mm on my car for almost 21,000 miles, with no issues whatsoever. Maybe you can try what I installed.
They have aluminum alloy 7075-T6 and 6061-T6 options. 7075-T6 will be more expensive but better in quality. In fact, 6065-T6 is good enough. Its tensile strength, yield strength and elongation can support our normal use. And its lugs are grade T10, studs are forged grade 12.9.