This is a feature that was already requested a few times… 
Let’s sum this up a little, so we maybe can open a new and ordered feature request to the ESPHome FR repo. I can’t imagine this to be very complicated to implement, but I have no real idea! 
What is mostly wanted is a “selected update function”, where you can mark some devices and only update these after a button click. Something like Update selected in addition to Update all.
I just did a little search (the last three years seems reasonable) in the FR repo of ESPHome, and as I said, it seems like a really wanted feature.
- Update Selection - One Click Update · Issue #1604 · esphome/feature-requests · GitHub
- Only "update all" of those devices that are actually outdated · Issue #2129 · esphome/feature-requests · GitHub
- Extend the UPDATE ALL button with UPDATE ONLINE, and UPDATE AVAILABLE function · Issue #1695 · esphome/feature-requests · GitHub
- Update all + Update specific with regex match · Issue #2353 · esphome/feature-requests · GitHub
- Change "Update All" to "Update Online Devices" · Issue #2441 · esphome/feature-requests · GitHub
- Update_all but filtered by search · Issue #2592 · esphome/feature-requests · GitHub
- Move unused nodes to a different folder/tab · Issue #1995 · esphome/feature-requests · GitHub
And even here in the forum where a few requests, I could only find one of them, because I answered there (see here).
Please leave some comment on what your personal preference would be, or what you would like to see the FR about. Maybe we can set something up together, that will be seen as a useful feature and get our (to write) FR accepted. 