I was told that :

ПОШЁЛ - went somewhere and (usually) haven’t come back yet (and told that I can use ушёл here too) if you state it as a fact or as a part of a story with other actions following one another.

ХОДИЛ - a fact and can mean a one time occurence in the past

CХОДИЛ - not as significant to mention / may mean for a short amount of time.

Are the descriptions / details regarding these verbs of motion accurate observations and why would someone ever choose сходил instead of ходил? :

Она́ ХОДИ́ЛА приме́рно НА со́рок пять мину́т. (ходи́ла fact - there and back)

Она́ ПОШЛА́ приме́рно НА со́рок пять мину́т. (пошла́ left and no one knows where she's at or part of a story and NOT a fact)

Она́ СХОДИ́ЛА приме́рно НА со́рок пять мину́т.  (сходи́ла there and back or insignificant)

Я пошёл СХОДИ́Л на рабо́ту и пото́м, я пошёл в университе́т. (СХОДИ́Л because the action was completed (ПОШЁЛ means that you just started off toward somewhere)

I was told that :

пошёл - went somewhere and (usually) haven’t come back yet (and told that I can use ушёл here too) if you state it as a fact or as a part of a story with other actions following one another.

ходил - a fact and can mean a one time occurence in the past

сходил - not as significant to mention / may mean for a short amount of time.

Are the descriptions / details regarding these verbs of motion accurate observations and why would someone ever choose сходил instead of ходил? :

Она́ ходи́ла приме́рно на со́рок пять мину́т. (ходи́ла fact - there and back)

Она́ пошла́ приме́рно на со́рок пять мину́т. (пошла́ left and no one knows where she's at or part of a story and not a fact)

Она́ сходи́ла приме́рно на со́рок пять мину́т. (сходи́ла there and back or insignificant)

Я пошёл сходи́л на рабо́ту и пото́м, я пошёл в университе́т. (сходи́л because the action was completed (пошёл means that you just started off toward somewhere)

I was told that :

ПОШЁЛ - went somewhere and (usually) haven’t come back yet (you can use ушёл here too) if you state it as a fact or as a part of a story with other actions following one another.

ХОДИЛ - a fact and can mean a one time occurence in the past

CХОДИЛ - not as significant to mention / may mean for a short amount of time.

Are the descriptions / details regarding these verbs of motion accurate observations and why would someone ever choose сходил instead of ходил? :

Она́ ХОДИ́ЛА приме́рно НА со́рок пять мину́т. (ходи́ла fact - there and back)

Она́ ПОШЛА́ приме́рно НА со́рок пять мину́т. (пошла́ left and no one knows where she's at or part of a story and NOT a fact)

Она́ СХОДИ́ЛА приме́рно НА со́рок пять мину́т. (сходи́ла there and back or insignificant)

Я пошёл СХОДИ́Л на рабо́ту и пото́м, я пошёл в университе́т. (СХОДИ́Л because the action was completed (ПОШЁЛ means that you just started off toward somewhere)

I was told that :

ПОШЁЛ - went somewhere and (usually) haven’t come back yet (and told that I can use ушёл here too) if you state it as a fact or as a part of a story with other actions following one another.

ХОДИЛ - a fact and can mean a one time occurence in the past

CХОДИЛ - not as significant to mention / may mean for a short amount of time.

Are the descriptions / details regarding these verbs of motion accurate observations and why would someone ever choose сходил instead of ходил? :

Она́ ХОДИ́ЛА приме́рно НА со́рок пять мину́т. (ходи́ла fact - there and back)

Она́ ПОШЛА́ приме́рно НА со́рок пять мину́т. (пошла́ left and no one knows where she's at or part of a story and NOT a fact)

Она́ СХОДИ́ЛА приме́рно НА со́рок пять мину́т. (сходи́ла there and back or insignificant)

Я пошёл СХОДИ́Л на рабо́ту и пото́м, я пошёл в университе́т. (СХОДИ́Л because the action was completed (ПОШЁЛ means that you just started off toward somewhere)