Another options (particularly if your org runs off MS outlook & Teams) - pencil in the review time as an appointment in your calendar, so your status shows as 'Busy' during that time. If that's not sufficient, you can even make it a Teams meeting with only yourself in it, so then your Teams status would show that you're in a call.
Yeah, i use this technique - both a simple blocking appointment as well as a fake meeting with only myself...but what has even happened a few times is that someone will see that i have an appointment or meeting near the end of the day, and they figure they can book a short meeting with me immediately after that block...I have a colleague at work who from about 6pm until the following day blocks his calendar with an "out of office" signal...so its 100% clear that he is off the clock and not available...but still people in this company (from other timezones mostly but sometimes also the same timezone) harass others regardless if a calendar os blcoked, etc...Like i said its simply toxic where i work in this way. But, i appreciate the idea, thanks!