Is there any way to see Load Focus points for Anaerobic, High Aerobic, Low Aerobic afterwards for each activity?

Short of taking Before and After screen shots, no I don't think there is. Or perhaps looking at the difference between Garmin Connect and your watch before the activity uploads.

Yes, I have taken screenshots before and after a couple of times and that is of course doable but it would be nice if there was an easier way. I have found the Aerobic and Anaerobic points (on screenshot 2) in the .FIT file but I have not found the Load points. But maybe they are there somewhere.

Yeah, I'd like to see a simpler way of doing that too. I can never remember to take the screen shots. One thing I'd really like to compare is the effect of adding an extended (aerobic) cool down to an anaerobic workout. 

How about the exercise load tab? Lists all the activities  and what their load is and benefit type i.e. 3.4km activity - load 31 - benefit base?

Of course graph above also shows the colour coding for each day in relation to impact.Only bummer is only being able to see 4 weeks at at time.....

Took another quick look in the .FIT files but couldn't find the Load points in clear text. Maybe they are hidden in some way (maybe like the VO2 Max score). They are probably there somewhere. I sometimes do slow Base runs with a few sprints included, and then I'm getting both Low Aerobic and Anaerobic points. But it would be really nice if I could look at the historic data also. Will do screenshots until I can take a deeper look at it.

No, on that view you can only see the Primary Benefit and the total Load points.

Ok mcalista, I've found the data for Total Exercise Load points and also the data for Anaerobic points in the .FIT files. 

Columns AX and BD is Total Load points. Columns BA and BG is Anaerobic Load points. You need to divide the values with 65536 to get the correct values.

Total Training effect score for Aerobic and Anaerobic is also there in clear text.

For the more technically inclined:

1. Install python-fitparse.
2. Convert a fit-file to json with fitdump -t json <fit-file>.
3. Use jq to extract the desired data: jq '.[0].data.time_created as $time_created| .[].data | select(has("total_training_effect"))|{total_training_effect, total_anaerobic_training_effect, $time_created}' <json-file>

Example output: 

{
  "total_training_effect": 1.3,
  "total_anaerobic_training_effect": 0,
  "time_created": "2021-09-22T08:35:26"
}

The Aerobic and Anaerobic score can be checked in the Activities in Connect. But the Load points for Aerobic and Anaerobic cant be read that way. But they are in the .FIT files as described above.

Did you see my answer from 2021--09-23 mcalista?