I just move them to a mostly shady place outside and keep them there. Or leave them inside, Saw too many burn in the past. But I I have hot sunny summers. Anything that has been inside will get sunburn if they are not used to full sun. Less is more. Be careful bc you can't undo sunburn spots.

I have a plantshed with transparant windows. During winter the windows get dirty and green and when I place my plants in march outside I leave the dirt for a moth or more on the roof. That gives my plants enough protection. Somewhere in june I will clean the roof.

If you do not have any 'transitional' building like Harry, move them first into shadier area, moving into more and more sunlight every week or so. Or create some shade in full sun by using large potted plants, or sun umbrella or even shade cloth. If you start early before sun is most intense, they could be moved every few days. I can't really see plants burning in z7 if they are acclimatized properly.

Most cacti will like full sun, and aloes too. But I wouldn't leave haws in full sun whole summer long...They may be better off in area with some morning sun, or in partial shade.

I used white mesh for shade cloth. Cheaper and easier to get.

Best to do on cloudy days - I was supposed to but what was supposed to be stormy yesterday turned out to be blue sky and very hot (worst case).

Water the day before putting your plants out so they will be more resilient.

I also try to increase my indoor light levels to match outdoors to minimize the required acclimation.

I have always wondered, so I put my plants out in a shady area. How long do I keep them there?

If they look good, not super stressed, and not burning, then it's time to move them to more light. =)