Hi. Am curious to know if anyone invests in T-bills and Sg Govt bonds? If yes, able to share your experience :)

Crypto and robo-advisors seems to be the craze right now. But these failed to appeal to me (someone who's in their 3rd working year after uni with a somewhat low-risk appetite who's planning to BTO in the next 2-5years), am not FOMO either. I have been reading up on investing both using cpf and investing via our local banks in Sg bonds/Tbills/annuities to prep for my retirement and would like to hear from the community of your thoughts in these investments. Thanks in advance :)