“Skip last recovery” issue in Repeat blocks – Garmin Swim 2

TL;DR Unfortunately I think this behaviour is by design and won't be changed. I don't think a watch as old as Garmin Swim 2 will respect the "skip last recovery/rest" checkbox, as it's a fairly new feature. 

As a workaround, I guess you could add an extra Rest block after the repeat.

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I don't work for Garmin, but I think I can offer some context:

- For running workouts, the situation is the opposite. On older watches, the last rest/recovery is never skipped. (The "skip last recovery" checkbox is still ignored in this case)

- According this reddit post, a Forerunner 745 user sees the same behaviour as you: the last recovery is always skipped for swim workouts. The same user said this doesn't happen anymore after upgrading to FR955. It's worth noting that FR745 was released in 2020 (and Garmin Swim 2 was released in 2019), which means they're of a similar or same "generation" of Garmin devices, and it's not surprising they would work the same way. (And if the situation can't be resolved for 745, it probably can't be resolved for Swim 2)

- the "skip last recovery/rest" checkbox on programmed workouts of any kind is a fairly new feature which was added in the last couple of years and only works with newer devices (e.g FR955). Iirc, in the past if I checked this box and tried to sync the workout to an old device like FR935, the Connect website would display a warning that some features of the workout are not supported by the device. Tbf this warning isn't displayed anymore, but I'm 100% sure the "skip last recovery" checkbox would be ignored for old devices anyway

- For me, the Connect website does show a "Skip Last Recover" / "Skip Last Rest" checkbox for all workouts, including pool swim workouts. 

- For me, the Connect mobile app (on iOS) shows something a bit different: "Skip Last Recovery/Rest: On/Off" (where "On" or "Off" is styled as a link). If I tap on On (or Off), it opens a popover which allows me to change the repeat times, and it shows a toggle for Skip Last Recovery with a long explanation: "This will skip the last recovery/rest in the repeat when performing the workout on the device". 

It's interesting that the checkbox cannot be modified on the mobile app for you - it could be that the app is being "smart" and noticing that you don't have any devices registered to your account / app which support this feature.

My conclusion:

- (educated guess) skipping the last rest for swim workouts on older watches is a deliberate design decision and won't be changed

- (this is almost certain) the "skip last rest/recovery" option is a new feature and won't ever be supported on older devices, so checking or unchecking this box will never change the default behaviour of an interval workout of any kind