I was notified back in 2020 and decided to just can the (free) service. The most tedious thing I ever did was to go through my password manager and find every online service account that tied to my GSuite email address for the past decade and either change the email address or deprecate them entirely.
What was most interesting of my particular setup was having my GSuite email address forwarded to my regular GMail account and having the ability to compose emails on behalf of the GSuite email address. When I did log into the actual GSuite account, it had close to 5k~ unsolicited emails caught in the spam filter that never got forwarded.
Too late for you, but for anyone else or future reference, if you have account 1 forwarding to account 2 you can add a filter on account 1 with the condition "doesn't have the words" and the value "somelonggarbagestringthatwillneverbeinyourmail" and select "never send to spam". That way spam filtering only happens in account 2 where you can check it regularly.
What was most interesting of my particular setup was having my GSuite email address forwarded to my regular GMail account and having the ability to compose emails on behalf of the GSuite email address. When I did log into the actual GSuite account, it had close to 5k~ unsolicited emails caught in the spam filter that never got forwarded.