storing your seed in the cloud is a risk.
passwords will be weak.

if they were strong.. then the entropy would be huge and you would need to write down the password.
so ask yourself if you have to write down the password. then how is that any different than just writing the seed down on paper.

your reply might be that you want the seed in the cloud, so that if there was a house fire, the paper containing the seed which would burn wont be the only copy of the seed.
but now ask in that same house fire.. isnt your long entropy cloud password also burnt.. meaning you cant access the cloud.

secondly do you think the cloud service will be around in 5 years...(think about that)

the good thing about seeds is that they are separate words.
the best advice is to separate the words and have a cloud account using different cloud services for each word.

that way a hacker or inside man in the cloud hosting service has no access to the whole seed in one go
have the words on separate items around your house. like etch a word into the metal panel of your fridge/freezer etch another on the bottom side of your dinning room table, etc

and then have a puzzle/treasure map you create to know how to piece it together.

but going to these extremes are for those that hold/will hold enough funds worth worrying about