Low volume mid-week, mid volume with weekends outdoors - How to execute outdoor rides

Hello, I was looking for help on how to structure weekend outdoor rides so as not to derail my during the week, indoor structured TR rides.
I usually do low volume plans and add in 1 endurance ride and do this all during the week (so 4 trainer rides, Mon - Fri).
Monday - TR ride 1 (usually tack on 15 minutes of easy riding at end of 60 min ride)
Tuesday - TR ride 2 (usually tack on 15 minutes of easy riding at end of 60 min ride if its not already a 75 min ride)
Wednesday - Core workout
Thursday - 60 min endurance ride
Friday - TR ride 3 (this is usually a 90 min ride so leave as is)

I think I would prefer to NOT do a mid volume plan and try to do the weekend TR workouts, outside. My weekend rides could be on my own or with a group. Largely unstructured I would say and possibly try to get a PR on a segment or two if feeling OK. I am curious how I should manage myself on these outdoor weekend rides so as not to derail my plan during the week.
So, for example should I try to keep the TSS under a certain number, should I try to keep a certain percentage in zone 2, … whatever it is, also how do I track this while I am out on my ride?
When I start doing outdoor weekend rides my weekly schedule may have to shift to something like the below if I ride 1 day on the weekend outside?
Monday - TR ride 1 (usually tack on 15 minutes of easy riding at end of 60 min ride)
Tuesday - TR ride 2 (usually tack on 15 minutes of easy riding at end of 60 min ride if its not already a 75 min ride)
Wednesday - Core workout
Thursday - 60 min endurance ride (maybe Wed or Thurs can be interchanged)
Friday - TR ride 3 (this is usually a 90 min ride so leave as is)
Saturday - Outdoor ride
Sunday - Nothing

Or the below if 2 days?
Monday - Rest/Nothing
Tuesday - TR ride 1 (usually tack on 15 minutes of easy riding at end of 60 min ride)
Wednesday - TR ride 2 (usually tack on 15 minutes of easy riding at end of 60 min ride if its not already a 75 min ride)
Thursday - Core workout or Nothing?
Friday - TR ride 3 (this is usually a 90 min ride so leave as is)
Saturday - Outdoor ride
Sunday - Outdoor ride