wǒ yìbān xiàbān yǐhòu zǒu huí jiā.

Both are fine:

• 我一般下班以后走回家
• 我下班以后一般走回家 (slightly more common because the time phrase often comes earlier)

You can also front the frequency word: 一般我下班以后走回家. Adding a comma for a clear time frame is also common: 我下班以后，一般走回家. Avoid splitting the verb phrase like: 我下班以后走一般回家 (wrong).

Here 走 means “to walk (on foot).” Because it’s followed by a directional complement (回) and a destination (家), 走回家 specifically means “walk back home.” Note that:

• 走 can also mean “to leave” (e.g., 我先走了).
• If you want to say “go home” without specifying how, use 回家.
• If you want to emphasize “walking” as the means, you can also say 走路回家.

回 is a directional complement meaning “back/return.” Comparisons:

• 回家: go back home (means of transport unspecified)
• 走回家: walk back home
• 走到家: walk to (and reach) home; emphasizes arrival, not “back”
• 回到家: return and reach home; strong arrival sense Don’t say 走回到家 (redundant/unnatural).

Yes, with slight nuances:

• 一般: usually/typically; can also mean “ordinary/so-so” in other contexts.
• 通常: near-synonym of “usually,” a bit more formal: 我通常下班以后走回家.
• 经常/常常: often/frequently (implies relatively high frequency): 我经常下班以后走回家.
• 平时: “in normal times/as a rule” (functions like a time noun): 平时下班以后我走回家.

Both with and without 会 are natural:

• Without 会: neutral statement of habit.
• With 会: highlights a tendency/regular outcome (“will usually…”). Choice is stylistic; meaning is very close.

Don’t use 了 in a general-habit statement. 了 marks a completed event and clashes with 一般.

• Habit: 我一般下班以后走回家. (no 了)
• One specific past time: 昨天我下班以后走回家了.

All can work:

• 下班以后 and 下班后 are both common (后 is just shorter).
• 下班之后 feels a bit more formal/literary. Note: 以后 by itself can also mean “in the future,” but with an anchor like 下班, it means “after (that time).”

Both are fine:

• 下班以后: neutral, set-phrase feel.
• 下了班以后: explicitly marks the completion of “getting off work.” You can also use 下班后/下了班后.

Tone sandhi for 一:

• Before a 1st/2nd/3rd tone, it changes to 4th tone, so 一般 is yìbān.
• Before a 4th tone, it changes to 2nd tone, e.g., 一个 is yí gè. Alone, 一 is yī. Other words here: 下班 xiàbān, 以后 yǐhòu, 走 zǒu, 回 huí, 家 jiā.

Yes:

• 我下班以后就走回家. (right after finishing work) Combined with frequency:
• 我一般下班以后就走回家.
• 我下班以后一般就走回家. Both are natural. Keep 一般 before the verb phrase, not after 走.

No. 在 marks progressive aspect or location. Use it like:

• 我在走回家的路上。= I’m on the way walking home. Don’t insert 在 before 走回家 in a habitual statement.

Use 从:

• 我一般下班以后从公司走回家. Word order template: Subject + time + origin (从…) + frequency/manner + verb + destination. Variations like 下班以后我一般从公司走回家 are also fine.